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The scientist presented the results of her study at a conference, arguing that the use of new technology in medicine is rapidly growing, and the benefits are numerous. She explained that by using artificial intelligence, doctors can identify illnesses quicker, make diagnoses more accurate, and more people can get the care they need.

SAT · English · previous-year question

  1. A.She explained that by using artificial intelligence, doctors can identify illnesses quicker, make diagnoses more accurate, and more people can get the care they need.
  2. B.Doctors can identify illnesses quicker, make diagnoses more accurate, and more people can get the care they need, she explained, by using artificial intelligence.
  3. C.She explained that, by using artificial intelligence, doctors can identify illnesses quicker, make diagnoses more accurate, and more people can get the care they need.correct
  4. D.She explained that by using artificial intelligence, doctors can identify illnesses quicker, make diagnoses more accurate, and more people can get the care they need, she explained.

Answer

C. She explained that, by using artificial intelligence, doctors can identify illnesses quicker, make diagnoses more accurate, and more people can get the care they need.

Explanation

Choice C is the most effective way to combine the sentences because it uses a comma plus a nonessential modifier to combine the sentences. The nonessential modifier "by using artificial intelligence" is set off with commas because it is not necessary to the meaning of the sentence. Choice A is incorrect because it is just a run-on sentence. Choice B is incorrect because the phrase "she explained" is redundant. Choice D is incorrect because the phrase "she explained" is redundant and it does not create a grammatically correct sentence.

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