SAT Sentence Completion Practice Question 19: Answer and Explanation

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Question: 19

4. The theory of the ------- of cultures argues that all societies with highly developed technologies will evolve similar social institutions.

A. isolation
B. aesthetics
C. convergence
D. fragmentation
E. longevity

Correct Answer: C

Explanation:

Skill: Understanding the content, form, and function of sentences

Explanation for Correct Answer C :

Choice (C) is correct. "Convergence" means a move by multiple things toward the same point. If one were to insert this term into the text, the sentence would read "The theory of the convergence of cultures argues that all societies with highly developed technologies will evolve similar social institutions." The idea that all technologically advanced societies will experience "similar" social evolution suggests that these societies are moving toward the same point.

Explanation for Incorrect Answer A :

Choice (A) is incorrect. "Isolation" is a state of being alone or separated from others. If one were to insert this term into the text, the sentence would read "The theory of the isolation of cultures argues that all societies with highly developed technologies will evolve similar social institutions." It is difficult to see how the "isolation," or separation, of cultures would lead to a sharing of characteristics.

Explanation for Incorrect Answer B :

Choice (B) is incorrect. "Aesthetics" is the study of how beauty is perceived in works of art. If one were to insert this term into the text, the sentence would read "The theory of the aesthetics of cultures argues that all societies with highly developed technologies will evolve similar social institutions." "Aesthetics" has nothing to do with the parallel evolution of societies with similar technologies.

Explanation for Incorrect Answer D :

Choice (D) is incorrect. "Fragmentation" is the breaking apart of something. If one were to insert this term into the text, the sentence would read "The theory of the fragmentation of cultures argues that all societies with highly developed technologies will evolve similar social institutions." The idea of different societies evolving in similar ways implies that cultures are coming together in some regard, not breaking apart.

Explanation for Incorrect Answer E :

Choice (E) is incorrect. "Longevity" in this context means duration. If one were to insert this term into the text, the sentence would read "The theory of the longevity of cultures argues that all societies with highly developed technologies will evolve similar social institutions." The theory implies that it is technology rather than "longevity" that causes societies to evolve in similar ways.

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