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: Doctors' office. May I help you? ,M: Yes, my name is John Carver. I'd like to make an appointment to see Doctor Carter. ,F: What seems to be the problem? ,M: I guess I have a bad cold. ,F: Do you feel lightheaded or have a fever? ,M: No, neither. But my nose is off and running and I don't feel like eating anything.
(A) F: I’m sorry, I don’t understand. Could you say it again? (B) F: All right. So you are sure that you have a fever. (C) F: All right. So you don't feel lightheaded. And you have no appetite. (D) F: All right. So you have no appetite. And you are sure that you have a fever.
Example Output: C

Example Input: F: Would you have a look at this television set, please? ,M: Yes, of course. How long have you had it? ,F: About 10 years. Can you tell me how much it'll cost to repair it? ,M: Well, it'll cost about $500. It's cheaper to buy a new one.
(A) F: You suggest me to sell it at once because it doesn't have any problems, does it? (B) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) F: Why do you suggest me to buy a new one? It doesn't have any problems. (D) F: So you suggest me to buy a new one, right?
Example Output: D

Example Input: F: I think I want to go back to school, Paul. ,M: Well, that's a nice idea, Cindy. But what would you study? ,F: I'm not sure. I've always been interested in psychology. I think I'd do really well. ,M: Uh-huh, it's not that I don't believe in you, sweetheart. You were always a good student, but it's different when you're an adult going back to school. ,F: Well, I don't think I would have any problems making friends. Lots of older folks get a second BA degree later in life, just like I would be doing and besides I've always been young at heart. I'm sure I'd get along with the other students. And I think I'd be an even better rider and test taker now. Then when I went to college in my late teens and early 20s.
(A) M: I am really sorry, I did not catch that. Would you slow down, please? (B) M: Rita, are you dying for the second master' s degree? (C) M: Son, trust me, one BA. degree is totally enough! (D) M: Seriously, I think a BA. degree is enough for you.
Example Output:
D