SAT Sentence Completion Practice Question 193: Answer and Explanation

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Question: 193

4. More valuable and comprehensive than any previously proposed theory of the phenomenon, Salarza's research has ------ the basis for all subsequent----- in their field.

A. undermine… advancements
B. prepared… debacles
C. provided…investigations
D. dissolved… experiments
E. reinforced… misconceptions

Correct Answer: C

Explanation:

Explanation for Correct Answer C:

Choice (C) is correct. "Provide" means to supply or make available, and an "investigation" is careful research or an inquiry. If one were to insert these terms into the text, the sentence would read "More valuable and comprehensive than any previously proposed theory of the phenomenon, Salazar's research has provided the basis for all subsequent investigations in her field." This sentence makes the reasonable claim that Salazar's important research has "provided the basis for," or supplied the foundation for, additional research in the same field.

Explanation for Incorrect Answer A:

Choice (A) is incorrect. "Undermine" means to weaken, and an "advancement" is an improvement. If one were to insert these terms into the text, the sentence would read "More valuable and comprehensive than any previously proposed theory of the phenomenon, Salazar's research has undermined the basis for all subsequent advancements in her field." Although the second term could fit well into the sentence, the first term cannot. If Salazar's research was truly valuable and comprehensive, it should have helped to advance, not weaken, future work in the field.

Explanation for Incorrect Answer B:

Choice (B) is incorrect. "Prepare" means to make ready, and a "debacle" is a sudden disaster. If one were to insert these terms into the text, the sentence would read "More valuable and comprehensive than any previously proposed theory of the phenomenon, Salazar's research has prepared the basis for all subsequent debacles in her field." Although the first term fits in well with the overall meaning of the sentence, the second term does not. Salazar's research is said to be valuable and comprehensive. Thus it will not logically lead to disasters in her field.

Explanation for Incorrect Answer D:

Choice (D) is incorrect. "Dissolve" in this context means to break apart, and an "experiment" is a test or trial done to discover something. If one were to insert these terms into the text, the sentence would read "More valuable and comprehensive than any previously proposed theory of the phenomenon, Salazar's research has dissolved the basis for all subsequent experiments in her field." Although the second term might fit in well with the overall meaning of the sentence, the first term does not. Salazar's research might challenge previous work, but it cannot logically break apart the basis for future work in the field.

Explanation for Incorrect Answer E:

Choice (E) is incorrect. "Reinforce" means to strengthen, and a "misconception" is a misunderstanding. If one were to insert these terms into the text, the sentence would read "More valuable and comprehensive than any previously proposed theory of the phenomenon, Salazar's research has reinforced the basis for all subsequent misconceptions in her field." The first term could well fit with the overall meaning of the sentence, but the second term cannot. Salazar's research would not be considered valuable if it strengthened misunderstandings in her field.

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