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A large study recently revealed that those individuals who frequently engage in physical activity report a higher quality of life than those who do not. The study’s findings have led researchers to believe that physical activity may have a positive effect on quality of life.

SAT · English · previous-year question

  1. A.The study’s findings have led researchers to believe that physical activity may have a positive effect on quality of life.correct
  2. B.The study’s findings have led researchers to believe: physical activity may have a positive effect on quality of life.
  3. C.The study’s findings have led researchers to believe that physical activity may have a positive effect; on quality of life.
  4. D.The study’s findings have led researchers to believe that physical activity may have a positive effect, on quality of life.

Answer

A. The study’s findings have led researchers to believe that physical activity may have a positive effect on quality of life.

Explanation

Choice A is the best answer because it combines the two sentences correctly without creating any punctuation errors. The other choices create punctuation errors; choice B uses a colon incorrectly, choice C uses a semicolon incorrectly, and choice D uses a comma incorrectly.

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