F: I notice an article in the newspaper about the problem of rapid growth of cities in America. I was wondering do you Americans carry out a birth control policy? Can Americans have as many children as they want? ,M: Yes, sir. We can have as many as we want, but most people decide to have only one or 2, and some people decide not to have any.
(A) F: I am afraid I did not quite catch what you were saying. Please repeat it. (B) F: The cities are growing, but you don't know if there is birth control policy in America, do you? (C) F: Since the population is not growing in America, it's understandable to have no birth control policy. (D) F: Although the cities are growing rapidly, you don't have birth control policy in America, right?
D