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Discussion

Since flu viruses have been shown to be one of the major causes of bronchitis, ___________.

  • A.acute and chronic bronchitis were both thought to be inflammations of the air passages
  • B.infants, young children, and the elderly are more likely to get the disease
  • C.The American Lung Association estimates that about 14 million Americans suffer from the disease
  • D.getting a flu vaccine may also help prevent acute bronchitis

Answer: D

Correct answer: getting a flu vaccine may also help prevent acute bronchitis

Since opens a reason clause, so the main clause after the comma must be the conclusion drawn from it. If flu viruses cause bronchitis, then preventing flu helps prevent bronchitis. The other options are further facts about the disease, and none of them follows from the reason given.

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