Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
He smokes too much; perhaps that's why he can't get rid of his cough.
A. If he didn't smoke so much, he may get rid of his cough
B. If he smoked less, he might be able to get rid of his cough
C. If he smoked so much, he couldn't get rid of his cough
D. If he does not smoke, he may not have his cough