Question

Difficulty: MediumSelecting Concluding Sentences and Transitions

During the early nineteenth century, Mary Anning patrolled the crumbling cliffs of Lyme Regis, England, uncovering fossils that would reshape scientific understanding of prehistoric life. Despite her lack of formal education and the societal barriers she faced as a working-class woman, Anning’s sharp observations led to the discovery of the first complete ichthyosaur skeleton and a remarkable plesiosaur. Her findings provided crucial evidence for the controversial theory of extinction, challenging the prevailing belief that the natural world had remained unchanged since creation. [1]

The writer wants to end the paragraph with a sentence that emphasizes the lasting impact of Anning's discoveries on the field of science. Given that all the options are true, which choice best accomplishes this goal at the marker [1]?

  1. A
    She sold many of these fossils to wealthy collectors, who often took credit for her work.
  2. Through these groundbreaking discoveries, she helped lay the groundwork for modern paleontology.Answer
  3. C
    Ultimately, her work revolutionized how scientists viewed the history of Earth, she proved that ancient reptiles once ruled the prehistoric seas.
  4. D
    Therefore, she continues to patrol the shoreline of Lyme Regis, where she discovered many other important fossils.

Answer

Through these groundbreaking discoveries, she helped lay the groundwork for modern paleontology.
The correct option stating that she helped lay the groundwork for modern paleontology directly aligns with the writer's goal of emphasizing the lasting scientific impact of Anning's work. It smoothly summarizes the main ideas of the paragraph—her discoveries and how they challenged existing views—without introducing unrelated facts or grammatical errors.

Step-by-Step Solution

1
Analyze the writer's goal in the question stem.
The goal is to select a concluding sentence that emphasizes the lasting impact of Anning's discoveries on the field of science.
Understanding the specific rhetorical goal is necessary to evaluate which option meets the criteria.
2
Evaluate the options for relevance and focus.
The option about selling fossils introduces unrelated details about collectors. The remaining options focus on scientific impact, but must be checked for grammar.
A good conclusion must stay on topic and avoid introducing new, unsupported information.
3
Check the remaining options for grammatical correctness.
The option beginning with 'Ultimately, her work' has a comma splice. The option starting with 'Therefore, she continues' has a tense shift to the present tense. The option starting with 'Through these groundbreaking discoveries' is grammatically correct and meets the rhetorical goal.
The correct answer on the ACT must be both rhetorically effective and grammatically correct.

Key Concept

Selecting Concluding Sentences
Estimated Time:1m 0s
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