Question

Difficulty: MediumSelecting Concluding Sentences and Transitions

In 1938, Marjorie Courtenay-Latimer, a South African museum curator, received a call from a local fisherman who had caught a bizarre, heavy fish with limb-like lobed fins and an armored head. Recognizing its uniqueness, she sent descriptions to J.L.B. Smith, a prominent chemist and amateur ichthyologist, who identified it as a coelacanth—a primitive fish believed to have gone extinct 66 million years ago. This shocking discovery shook the scientific community, challenging long-held assumptions about the fossil record and the evolutionary history of vertebrates.

To find more specimens, Smith launched a decades-long search along the coast of the Indian Ocean, eventually discovering a second population near the Comoro Islands. Researchers soon realized that the coelacanth was not merely a lone survivor but part of a resilient, deep-water ecosystem that had remained largely undisturbed for eons. Consequently, J.L.B. Smith spent many years traveling along the coast of Africa looking for more of these creatures.

The writer wants to conclude the passage by emphasizing that the coelacanth's discovery continues to influence modern marine biology. Given that all the choices are true, which choice best accomplishes this goal?

  1. A
    NO CHANGE
  2. Indeed, this extraordinary find continues to inspire marine biologists to explore the unresolved mysteries of the deep ocean.Answer
  3. C
    Indeed, this extraordinary find continues to inspire marine biologists, they hope to discover other prehistoric species in the deep ocean.
  4. D
    Indeed, this extraordinary find continues to inspire marine biologists, who will explore the deep ocean and discovered new species.

Answer

The option stating that the extraordinary find continues to inspire marine biologists to explore deep-ocean mysteries is correct because it directly satisfies the rhetorical goal of highlighting the ongoing influence of the discovery, while remaining grammatically correct.
The correct option is the sentence stating that the find continues to inspire marine biologists to explore the unresolved mysteries of the deep ocean. This choice directly satisfies the prompt's request to show the discovery's ongoing impact on modern marine biology, and it is grammatically correct.

Step-by-Step Solution

1
Identify the specific rhetorical goal set by the prompt.
The goal is to select a concluding sentence that emphasizes how the coelacanth's discovery continues to influence modern marine biology.
This establishes the primary criterion for evaluating the options based on their content.
2
Eliminate options that contain grammatical errors.
The option with the phrase 'biologists, they hope' is eliminated due to a comma splice. The option with 'will explore... and discovered' is eliminated due to an illogical tense shift.
Grammatical accuracy is a prerequisite for any correct answer on the ACT English section.
3
Evaluate the remaining grammatically correct options against the rhetorical goal.
The option to keep the original text ('NO CHANGE') only details historical events. The option stating that the find 'continues to inspire marine biologists to explore' successfully connects the historic discovery to modern scientific endeavors.
Comparing the focus of the remaining choices ensures the selected sentence fulfills the writer's specific purpose.

Key Concept

Selecting Concluding Sentences
Estimated Time:1m 0s
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