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.

Example Input: F: Excuse me, could I ask you some questions? ,M: Of course. ,F: I work for an advertising agency and I'm doing some research. It's a new magazine for people like you. ,M: People like me? What do you mean? ,F: People between 20 and 35 years old.
(A) M: I am young. The magazine is not suitable for people like me. (B) M: So I am in the young group between 20 and 35, right? (C) M: So I am in the mid-aged group between 35 and 55, right? (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.
Example Output: B

Example Input: F: You seem to have caught a cold. ,M: I see. Should I have an injection or take some medicine? ,F: Neither. But you'd better drink more water every day. It will do you good.
(A) M: Excuse me, could you repeat the question? (B) M: Yeah. I should take some medicine. (C) M: Yeah. I should drink more water and go to the hospital then. (D) M: Yeah. I should drink more water.
Example Output: D

Example Input: F: It's too difficult for me to keep up with my classmates. ,M: You should play less and study more I'm afraid.
(A) F: Yes. I should have played more and relaxed myself because I have kept up with my classmates. (B) F: Yes. Maybe I have studied too much. I should relax myself because I have kept up with my classmates. (C) F: I guess you are right. I didn't study hard enough. (D) F: Excuse me, could you repeat the question?
Example Output:
C