One silly question I simply cannot tolerate is "How do you feel？" Usually the question is

One silly question I simply cannot tolerate is "How do you feel？" Usually the question is asked of a man in action—a man walking along the street, or busily working at his desk. So what do you expect him to say？ Hell probably say, "Fine, Im all right. " But you have put a bug in his ear—maybe now he is not sure. If you are his good friend, you may have seen something on his face, or in his walk, that he overlooked that morning. It makes him worrying a little. He looks in a mirror to see if everything is all right, while you go merrily on your way asking someone else, "How do you feel？" Every question has its time and place. Its perfectly acceptable, for instance, to ask "How do you feel？" if you are visiting a close friend in the hospital. But if the fellow is walking on both legs, hurrying to take a train or sitting at his desk working, its no time to ask him that silly question. When George Bernard Shaw, the famous British writer of plays was in his eighties, someone asked him, "How do you feel？" Shaw put him in his place. "When you reach my age," he said, "either you feel all right or you are dead. " Question: "You have put a bug in his ear" means that you have______.

A．made him laugh

B．shown concern for him

C．made fun of him

D．given him some kind of warning

请帮忙给出正确答案和分析，谢谢！