You will be given a definition of a task first, then some input of the task.
In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.

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?
Output:
D