W: Did you go see the doctor about your cough? M: The doctor said if I keep smoking it will increase my chance of having a heart attack or lung disease. And I am thinking about quitting smoking as the problems seem to be quite serious., Question: What do we know about the man? (A) He has had a heart attack because of smoking: (B) He has serious lung disease. (C) He is coughing because of too much smoking.
(C) He is coughing because of too much smoking.