question_answer

DIRECTIONS: In each of the following paragraph, a part of sentence is left unfinished. Beneath each sentence, four different ways of completing the sentence are indicated choose the best alterative among the four. 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