Knowledge of Language

330 questions

Question 141Question

In 1826, Nicéphore Niépce produced the oldest surviving photograph, which originally required an initial exposure period of eight hours in the sun.

Which of the following options is the best revision of the underlined portion?

Show answer & explanation

Answer: which required an exposure period of eight hours in the sun.

Answer

The option that states 'which required an exposure period of eight hours in the sun.' is the correct answer because it removes the redundant synonyms 'originally' and 'initial' while maintaining the proper subordinate clause structure.
The correct option removes the unnecessary words 'originally' and 'initial,' which are redundant because they both describe the start of the process. It maintains a grammatically correct dependent clause introduced by the relative pronoun 'which' to describe the photograph.

Step-by-Step Solution

1
Analyze the underlined portion for redundancy.
The words 'originally' and 'initial' are identified as synonyms that repeat the same concept of the beginning of the requirement.
Identifying synonymous terms in close proximity helps locate redundancy errors.
2
Evaluate the options to find the one that removes the redundancy.
The option omitting both 'originally' and 'initial' is the most concise and direct.
The correct choice must be the most concise option that preserves the sentence's intended meaning.
3
Check the remaining options for grammatical correctness.
The option starting with 'it' is incorrect because it creates a comma splice. The option containing a semicolon before 'because' is incorrect because it creates a dependent clause fragment.
Eliminating options that introduce new grammatical errors ensures only the grammatically correct, concise option is chosen.

Key Concept

Eliminating redundancy involves removing unnecessary words or phrases that repeat information already expressed or implied in the sentence.
Question 142Question

For over forty years, the legendary violinist had performed exclusively on a 1715 Stradivarius, making it incredibly difficult for him to part from the instrument upon his retirement.

Which choice is the most idiomatic expression to replace the underlined portion?

Show answer & explanation

Answer: part with

Answer

part with
The correct idiomatic expression for relinquishing ownership or giving up a physical possession is 'part with'. Since a violin is an object, the preposition 'with' must be paired with the verb 'part'.

Step-by-Step Solution

1
Identify the relationship between the verb 'part' and the object 'the instrument' to determine the correct idiomatic preposition.
The sentence describes giving up a physical possession (a Stradivarius violin).
English idioms distinguish between separating from a person ('part from') and giving up an object ('part with').
2
Select the option that pairs the verb 'part' with the correct preposition for objects.
The phrase 'part with' is chosen.
This is the standard English idiom for relinquishing possession of an item.

Key Concept

Idiomatic preposition usage with the verb 'part' when referring to objects versus people.
Question 143Question

The following passage discusses the acoustics of ancient Greek theaters. Which word most precisely and contextually completes the sentence to maintain the formal, academic register of the passage?

Fill in the blanks below

Although the design of the Epidaurus theater has long been celebrated for its acoustic clarity, the exact mechanism behind this phenomenon remained elusive until modern researchers analyzed the site. Modern acoustic testing has revealed that the theater’s limestone seats act as a natural bandpass filter. Specifically, the ridged structure of the limestone steps serves to low-frequency environmental noise—such as the rustle of wind or the chatter of spectators—while simultaneously reinforcing the high-frequency sounds originating from the stage.
Show answer & explanation

Answer

attenuate
The correct word is 'attenuate'. In acoustics and wave physics, to attenuate means to reduce the amplitude, force, or value of a wave. Because the passage is written in a formal, academic register describing the scientific mechanism of a 'bandpass filter' that reduces 'low-frequency environmental noise' while 'reinforcing' other sounds, 'attenuate' is the most precise and contextually appropriate term.

Step-by-Step Solution

1
Analyze the context of the sentence to determine the semantic requirement of the missing word.
The target word must describe what the limestone steps do to 'low-frequency environmental noise' in contrast to 'reinforcing the high-frequency sounds'. Since it acts as a filter that reduces noise while reinforcing voices, the word must mean to reduce the amplitude, force, or intensity of a sound wave.
This establishes the physical and conceptual action of the verb required by the context.
2
Evaluate candidate words for tone, register, and precision in a scientific and acoustic context.
Words like 'soften' or 'hush' are too informal or literary. The word 'attenuate' is the precise scientific and academic term used in physics and acoustics to describe the reduction in force or intensity of a wave (such as sound).
This identifies the most precise word that maintains the formal, academic tone of the passage.

Key Concept

Selecting the most precise word that fits the context and maintains the appropriate tone and register.
Question 144Question

Despite the critical acclaim of her latest novel, the author remained largely indifferent for the public praise, choosing instead to focus on her next writing project.

Which of the following choices best replaces the underlined portion to maintain idiomatic word choice?

Show answer & explanation

Answer: indifferent to

Answer

indifferent to
The adjective 'indifferent' must be paired with the preposition 'to' when expressing a lack of interest, concern, or sympathy. Thus, 'indifferent to' is the idiomatically correct choice.

Step-by-Step Solution

1
Identify the underlined phrase and the word that requires a prepositional partner.
The adjective 'indifferent' is followed by the preposition 'for' in the passage.
To determine if the original phrasing is correct or if it needs to be changed.
2
Evaluate the idiomatic combination of 'indifferent' with the prepositions in the options.
The correct idiomatic preposition to pair with 'indifferent' is 'to'.
Idiomatic usage requires specific prepositions to be paired with certain adjectives; 'indifferent' always pairs with 'to' when indicating lack of interest or concern.

Key Concept

Idiomatic prepositions require memorizing which prepositions correctly pair with specific verbs, adjectives, or nouns.
Question 145Question

At the 1893 World's Columbian Exposition in Chicago, Josephine Cochrane showcased her newly invented automatic dishwasher. A top prize was won by the machine, which was because the judges were highly impressed by its design and efficiency.

Which choice is the best version of the underlined portion of the sentence?

Show answer & explanation

Answer: The machine won a top prize because the judges were impressed

Answer

The machine won a top prize because the judges were impressed
The correct choice is active, concise, and grammatically correct. It removes the wordy, passive construction of the original sentence by using the active verb 'won' and directly stating the cause with 'because the judges were impressed'.

Step-by-Step Solution

1
Identify the underlined portion and evaluate it for conciseness and clarity.
The original phrasing is found to be wordy and passive, indicating that a revision is needed to make the sentence direct and active.
ACT style favors active verbs and conciseness when grammatically correct.
2
Analyze the choices to find the one that is grammatically correct and the most concise.
The option stating 'The machine won a top prize because the judges were impressed' is concise, active, and grammatically complete. The option with 'the judges were impressed' creates a comma splice, and the option starting with 'Since' results in a sentence fragment.
Eliminating wordiness must not introduce grammatical errors like comma splices or sentence fragments.

Key Concept

Eliminating Wordiness
Estimated Time:1m 0s
Question 146Question

The following passage discusses environmental conservation efforts in local communities. Read the passage and consider the register and meaning of the context. Which word most precisely and contextually fits the blank to maintain the formal register of the passage?

Fill in the blanks below

During the dry summer months, local authorities often ask residents to conserve water. By limiting outdoor watering and fixing leaks, communities can help their shared water supply for future use.
Show answer & explanation

Answer

The correct answer is 'preserve' (or accepted equivalents like 'save', 'conserve', or 'protect').
The correct answer is 'preserve' (or accepted equivalents like 'conserve' or 'save') because it precisely describes the action of keeping a resource safe and usable for the future without violating the formal register of the passage.

Step-by-Step Solution

1
Analyze the context of the sentence and the purpose of the blank space.
The blank requires a verb that describes keeping the shared water supply intact, safe, and available for the future.
Understanding the context helps determine the correct meaning and register required for the sentence.
2
Evaluate potential vocabulary choices for register and precision.
Words like 'preserve' or 'conserve' fit the formal tone of a public advisory and precisely describe protecting a resource.
Choosing a word that is appropriate in register prevents the text from sounding overly informal or dramatically exaggerated.

Key Concept

Selecting precise words that match the context and register of the passage.
Estimated Time:45s
Question 147Question

Using advanced X-ray phase-contrast tomography, researchers have successfully read ancient scrolls from Herculaneum without unrolling them. These scrolls, which were carbonized and turned to charcoal by the heat of Mount Vesuvius, contain lost works of Epicurean philosophy.

Which choice most effectively eliminates the redundancy in the underlined portion of the sentence?

Show answer & explanation

Answer: These scrolls, carbonized by the heat of Mount Vesuvius,

Answer

These scrolls, carbonized by the heat of Mount Vesuvius,
The correct choice removes the redundancy of having both 'carbonized' and 'turned to charcoal' (which have the same meaning in this context) and smoothly integrates the description as a participial phrase modifying the subject. This results in a concise, grammatically correct sentence.

Step-by-Step Solution

1
Identify the redundancy in the underlined portion of the sentence.
The words 'carbonized' and 'turned to charcoal' are synonyms that repeat the same idea, meaning one must be eliminated.
ACT English requires eliminating redundant words to ensure the text is as concise as possible while remaining grammatically correct.
2
Evaluate the options for conciseness and grammatical correctness.
The option containing 'carbonized by the heat' eliminates the repetition. Other choices introduce grammatical errors, such as fragments or comma splices.
Eliminating redundancy must not introduce new grammatical errors like fragments or run-on sentences.

Key Concept

Eliminating Redundancy
Estimated Time:45s
Question 148Question

When the Voyager 1 spacecraft reached the edge of our solar system, scientists were amazed to detect a low, hum-like vibration in the plasma data; it was audible to the ear, and they heard it.

Which choice best eliminates the redundancy in the underlined portion of the sentence?

Show answer & explanation

Answer: it was audible

Answer

it was audible
The option 'it was audible' is correct because it removes the repetitive phrases ('to the ear' and 'heard') while maintaining a grammatically complete independent clause after the semicolon.

Step-by-Step Solution

1
Identify the redundant elements in the underlined phrase.
The phrase contains 'audible,' 'to the ear,' and 'heard,' which are repetitive synonyms representing the same concept.
Redundancy must be eliminated to make the sentence concise and clear.
2
Evaluate the grammar of the concise options relative to the semicolon.
The clause following the semicolon must be independent. The option 'it was audible' is an independent clause, whereas 'which was audible' is a dependent clause that creates a fragment.
The correct answer must be grammatically correct as well as concise.

Key Concept

Eliminating Redundancy
Question 149Question

During the construction of a fort near the Egyptian port city of Rashid in 1799, French soldiers uncovered a large slab of granodiorite that would later be known as the Rosetta Stone. The stone, which had writing carved into its surface that was written in three different scripts, proved to be the key to deciphering Egyptian hieroglyphs.

Which of the following options, when substituted for the underlined portion, creates the most concise and grammatically correct sentence?

Show answer & explanation

Answer: The stone, featuring text inscribed in three distinct scripts,

Answer

The stone, featuring text inscribed in three distinct scripts,
The correct option is the most concise and grammatically correct choice. It avoids the redundancy of using multiple words to describe the scripts and maintains a clear, direct active structure without grammatical errors.

Step-by-Step Solution

1
Analyze the underlined portion of the sentence for redundancy and wordiness.
The original phrase 'writing carved into its surface that was written' contains repetitive ideas since 'carved' and 'written' both refer to the inscriptions on the stone.
Identifying unnecessary repetition is the first step in resolving wordiness.
2
Evaluate each option to find the one that is grammatically correct and eliminates redundant language.
The phrase 'The stone, featuring text inscribed in three distinct scripts,' expresses the same idea in a clear, concise manner without grammatical errors or unnecessary repetition.
The correct choice must improve conciseness while remaining grammatically sound.

Key Concept

Eliminating Wordiness
Estimated Time:1m 0s
Question 150Question

The architectural firm submitted several designs for the new city library. Ultimately, the city council selected the plan that was unique and unlike any other they had reviewed.

Which choice is the most concise and grammatically correct way to write the underlined portion of the sentence?

Show answer & explanation

Answer: selected the unique plan they had reviewed.

Answer

selected the unique plan they had reviewed.
The correct choice is the most concise option. Since the word 'unique' means 'unlike any other,' removing the repetitive phrase makes the sentence direct and clear without altering its meaning or introducing grammatical errors.

Step-by-Step Solution

1
Identify any redundant words or phrases in the underlined text.
The word 'unique' means 'unlike any other,' so including both 'unique' and 'unlike any other' is redundant.
Eliminating repetitive words is essential to meet the ACT English test requirement of conciseness.
2
Evaluate the remaining options for proper punctuation and sentence structure.
The option with the semicolon creates a sentence fragment because 'which' starts a dependent clause. The option with the comma creates a comma splice by linking two independent clauses without a coordinating conjunction.
The correct choice must be both concise and grammatically correct.

Key Concept

Eliminating redundancy to achieve conciseness and clarity in writing.
Estimated Time:45s
Question 151Question

The local public library has recently updated its lending policies to make resources more accessible. In an effort to encourage more community members to borrow books, the library board voted to dump late fees entirely. The directors hope this change will welcome back patrons who were discouraged by past penalties.

Which choice most precisely and clearly fits the tone and meaning of the sentence?

Show answer & explanation

Answer: eliminate

Answer

The correct option is 'eliminate' because it provides the most precise and stylistically appropriate word for removing library fees.
The word 'eliminate' is the most precise and appropriate choice because it fits the formal, professional tone of a library policy document and clearly conveys the permanent removal of the fees.

Step-by-Step Solution

1
Analyze the context and tone of the passage.
The passage describes an official policy change by a public library board, indicating that a formal, academic tone is required.
Understanding the context and tone helps narrow down the choices to those that match the register of the text.
2
Evaluate the word choices for meaning and precision.
'Dump' is too informal, 'banish' is too dramatic, and 'discard' is used for physical objects. Only 'eliminate' is formal and refers to removing fees.
Selecting the most precise and appropriately toned word ensures the sentence is clear and grammatically correct.

Key Concept

Selecting precise words that match the context and established tone of a passage.
Estimated Time:45s
Question 152Question

Architects designing modern libraries must carefully balance open, collaborative spaces with quiet, isolated study areas. While high ceilings and glass partitions create an inviting, spacious atmosphere, they are often not conducive for maintaining the silence required in research rooms.

Which of the following choices is the most acceptable alternative to the underlined portion?

Show answer & explanation

Answer: conducive to

Answer

conducive to
The word 'conducive' must be followed by the preposition 'to' to form the standard English idiom meaning making a certain situation or outcome likely or possible. The context of library design requires an adjective-preposition combination that links the physical environment to the outcome of maintaining silence. Using 'to' satisfies this idiomatic requirement.

Step-by-Step Solution

1
Identify the underlined phrase and the word that requires a prepositional partner.
The adjective 'conducive' is underlined alongside the preposition 'for'.
This establishes that the question is testing idiomatic preposition usage after the adjective 'conducive'.
2
Evaluate the idiom 'conducive' + preposition to see which pairs correctly in standard English.
The correct idiomatic pair is 'conducive to', meaning helpful or favorable to a specific outcome.
Standard English conventions dictate that 'conducive' collocated with 'to' is the only accepted form.
3
Select the option that provides 'conducive to' to correct the sentence.
The choice 'conducive to' replaces 'conducive for' to make the sentence idiomatically correct.
This resolves the idiomatic error and conforms to official grammatical standards.

Key Concept

Idiomatic Preposition Collocation
Estimated Time:1m 0s
Question 153Question

Modern oceanographers utilize advanced sonar technology to map the uncharted depths of the ocean floor. To analyze these areas, researchers rely on highly detailed three-dimensional maps of underwater topography. This scientific data is crucial for understanding plate tectonics and marine ecosystems.

Which choice best maintains the academic and professional tone established in the passage?

Show answer & explanation

Answer: NO CHANGE

Answer

NO CHANGE
The original phrasing 'rely on' is grammatically correct and fits seamlessly with the academic, objective, and professional tone established in the passage.

Step-by-Step Solution

1
Analyze the context and established tone of the passage.
The passage uses formal, scientific language such as 'utilize advanced sonar technology' and 'uncharted depths,' establishing an academic and professional tone.
Identifying the overall tone helps eliminate options that are too informal or excessively wordy.
2
Evaluate the underlined portion and the choices for tone consistency and grammar.
The original phrase 'rely on' is standard, professional, and grammatically correct. The option 'bank on' is too casual. The phrase 'place their absolute dependency upon' is unnecessarily wordy and pretentious. The option 'rely to' is ungrammatical because the verb 'rely' requires the preposition 'on'.
Comparing choices ensures the selected option is both grammatically sound and stylistically consistent with the rest of the text.

Key Concept

Tone Consistency
Estimated Time:1m 0s
Question 154Question

Read the following sentence and determine which option best replaces the underlined portion:

Despite being a vocal proponent for renewable energy, the senator voted against the new environmental bill because of its regulatory loopholes.

Which of the following options represents the correct idiomatic phrasing for the underlined text?

Show answer & explanation

Answer: proponent of

Answer

proponent of
The correct answer is the option containing 'proponent of'. In standard written English, the noun 'proponent' must be paired with the preposition 'of' when expressing advocacy or support for a concept, cause, or policy. The phrase 'proponent of renewable energy' is the correct idiomatic construction in this context.

Step-by-Step Solution

1
Identify the target noun and the preposition paired with it.
The target phrase is 'proponent for', which pairs the noun 'proponent' with the preposition 'for'.
Isolating the noun and its preposition allows us to evaluate whether the pairing is idiomatic.
2
Recall the correct idiomatic preposition that follows the noun 'proponent'.
In standard English, 'proponent' is followed by the preposition 'of' to form the idiom 'proponent of' (e.g., 'a proponent of renewable energy').
Matching the noun with its conventional idiomatic preposition ensures grammatical accuracy and clarity.

Key Concept

Idiomatic noun-preposition collocations
Question 155Question

Choose the option that best answers the question.

Deep beneath the ocean's surface, where sunlight cannot penetrate, many marine organisms have evolved the ability to produce their own light. This biological phenomenon, known as bioluminescence, serves several critical functions. Some creatures use flashes of light to scare off predators, while others employ glowing lures to attract prey. For instance, the anglerfish utilizes a luminous bulb suspended above its mouth to draw in curious organisms, which are then quickly captured. In this dark and high-pressure environment, bioluminescence is [not just a cool party trick] but an essential tool for survival.

Which choice best maintains the established tone of the passage?

Show answer & explanation

Answer: not merely a decorative feature

Answer

not merely a decorative feature
The correct answer 'not merely a decorative feature' is appropriate because it uses a formal, objective, and neutral tone that perfectly matches the rest of the scientific passage, while stating the point concisely.

Step-by-Step Solution

1
Analyze the established tone of the passage.
The passage uses a formal, objective, and academic tone to explain the scientific process of bioluminescence.
Stylistic appropriateness requires the underlined portion to match the writing register of the surrounding text.
2
Evaluate the underlined phrase against the established tone.
The phrase 'not just a cool party trick' is highly colloquial and conversational, causing a tone clash with the scientific context.
Colloquialisms and informal expressions are inappropriate in academic essays on the ACT English section.
3
Evaluate the choices to find the one that is grammatically correct, concise, and stylistically appropriate.
The choice stating 'not merely a decorative feature' matches the formal tone and is concise. The other choices are either too formal, overly verbose, or redundant.
The correct answer must restore proper tone and maintain conciseness without introducing grammatical errors.

Key Concept

Stylistic Appropriateness
Question 156Question

For decades, local archivists have preserved the letters of pioneering botanist Isabella Sinclair. Her correspondence provides a fascinating insight of the challenges faced by female scientists in the nineteenth century. Which of the following choices best replaces the underlined portion to make the sentence idiomatic?

Show answer & explanation

Answer: insight into

Answer

insight into
The correct option is 'insight into' because the noun 'insight' requires the preposition 'into' to idiomatically connect it to the object of that understanding.

Step-by-Step Solution

1
Identify the noun that requires a prepositional partner, which is 'insight'.
The noun 'insight' is being used to link to 'the challenges'.
Idiomatic word choice questions on the ACT often test the specific prepositions that must follow certain nouns, verbs, or adjectives.
2
Determine which preposition is idiomatically correct when paired with the noun 'insight'.
In standard English, one has 'insight into' a topic, situation, or issue.
Other prepositions, such as 'of', 'about', or 'to', are unidiomatic in this specific context and represent common usage errors.

Key Concept

Idiomatic Noun-Preposition Pairs
Question 157Question

The following passage is from a paper about archaeological linguistics.

For decades, the undeciphered inscriptions on the Phaistos Disc puzzled archaeologists, who struggled to identify any recognizable phonetic patterns. Recently, however, researchers employing computational linguistics have begun to map the recurring symbol sequences. These algorithms analyze the structural syntax, looking to see if they can catch a drift of the underlying linguistic rules of the Minoan civilization.

Which of the following options, if substituted for the underlined portion, best preserves the passage's established tone?

Show answer & explanation

Answer: systematically deducing

Answer

The phrase 'systematically deducing' is correct because it maintains the formal, objective tone of the surrounding text while adhering to proper English idiom.
The phrase 'systematically deducing' is correct because it utilizes vocabulary that is formal, precise, and objective, which maintains the established scholarly tone of the passage.

Step-by-Step Solution

1
Analyze the surrounding context to determine the tone.
The passage establishes a formal, academic register through word choices like 'undeciphered inscriptions,' 'computational linguistics,' and 'structural syntax.'
Identifying the author's tone is necessary to find an option that matches that register consistently.
2
Evaluate the underlined portion for tone consistency.
The phrase 'looking to see if they can catch a drift of' is an informal, colloquial idiom, which represents a jarring shift in tone.
This step determines whether a change is needed.
3
Assess the remaining options to find one that is both tone-consistent and grammatically correct.
The phrase 'systematically deducing' is formal and clear. In contrast, 'hermeneutically prognosticating' is overly pretentious, and 'capable to deduce' is grammatically incorrect because 'capable' must be paired with 'of' rather than 'to'.
This step eliminates incorrect distractors based on tone register and grammatical rules.

Key Concept

Tone Consistency
Estimated Time:1m 0s
Question 158Question

During the archaeological excavation in Egypt, the team uncovered a hidden chamber inside the tomb. Inside the chamber, they found several wooden chests, each of which contained ancient artifacts that were very old.

Which choice most effectively eliminates redundancy in the underlined portion of the sentence?

Show answer & explanation

Answer: each containing ancient artifacts

Answer

each containing ancient artifacts
The correct answer, 'each containing ancient artifacts', is the most concise option because it eliminates the redundant descriptor 'that were very old' (since 'ancient' already implies that the artifacts are very old). It is also grammatically correct, using a participial phrase to modify 'chests' without creating any punctuation errors.

Step-by-Step Solution

1
Identify the redundant phrasing in the underlined segment.
The word 'ancient' already means 'very old,' so including both phrases is repetitive.
ACT English questions require eliminating words that repeat ideas already expressed.
2
Evaluate the remaining options for grammatical correctness and conciseness.
The option containing a comma splice joins independent clauses incorrectly. The option with the semicolon creates a dependent clause fragment. The option using a participial phrase is grammatically correct and concise.
The correct choice must not introduce new grammatical errors while removing redundancy.

Key Concept

Eliminating Redundancy
Estimated Time:1m 0s
Question 159Question

In 1938, museum curator Marjorie Courtenay-Latimer noticed a strange blue fish among a local trawler's catch. This fish was a coelacanth, which had been previously thought by scientists to have gone extinct and died out millions of years ago. Courtenay-Latimer contacted chemist J.L.B. Smith to identify the specimen, confirming the survival of a lineage dating back 400 million years.

Which choice best maintains the clear, concise style of the passage?

Show answer & explanation

Answer: This fish was a coelacanth, thought by scientists to have gone extinct millions of years ago.

Answer

This fish was a coelacanth, thought by scientists to have gone extinct millions of years ago.
The correct option is the most concise and direct revision of the underlined portion. By using a participial modifier ('thought by scientists to have gone extinct millions of years ago'), it eliminates both the wordy relative clause and the redundant synonyms 'gone extinct' and 'died out' present in the original sentence.

Step-by-Step Solution

1
Analyze the underlined portion for conciseness and redundancy.
The original phrasing contains redundant synonyms ('gone extinct' and 'died out') and relies on an overly wordy passive-voice structure ('which had been previously thought by').
ACT English requires eliminating repetitive words and preferring active, concise structures.
2
Evaluate the choices for grammatical correctness and clarity.
The option containing a comma splice and the option starting with 'Which' that creates a fragment are grammatically incorrect.
Revisions that fix wordiness must not introduce new sentence structure errors.
3
Select the option that is both grammatically correct and the most concise.
The phrasing that uses a past participial modifier ('thought by scientists...') is grammatically correct and removes all redundant language.
This option preserves the author's intended meaning while using the fewest words.

Key Concept

Eliminating Wordiness
Question 160Question

Dendrochronologists compare these rings to a reference database; they establish a chronological timeline that pinpoints the exact year the wood was harvested.

Which of the following choices best replaces the underlined portion of the sentence to ensure the passage is clear, concise, and grammatically correct?

Show answer & explanation

Answer: they establish a timeline that pinpoints

Answer

they establish a timeline that pinpoints
The correct choice removes the redundant adjective 'chronological' before 'timeline' while maintaining the necessary independent clause structure to follow the semicolon. Since a timeline is chronological by its very nature, using both words is repetitive.

Step-by-Step Solution

1
Identify any redundant or wordy language within the underlined portion.
The phrase 'chronological timeline' is redundant because a timeline is, by definition, chronological.
Recognizing redundancy helps narrow the choices to those that are concise and clear.
2
Evaluate the remaining options for grammatical correctness within the sentence structure.
The clause following the semicolon must be independent. The option beginning with 'because' creates a dependent clause fragment, and the option with a comma before 'it' results in a comma splice.
Eliminating options with grammatical errors ensures the final selection is both concise and grammatically correct.

Key Concept

Eliminating Redundancy
Estimated Time:1m 0s
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