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: M: Sophie, did you see that quiz show last night, the one presented by Frank Jones? ,F: No, was it any good? ,M: It was great. Frank Jones always makes me laugh. I've been watching it for the past couple of weeks. ,F: Do you think so? I don't understand why so many people think he's funny. ,M: Well, you're the fifth or sixth person I've told to see it. Some of my friends thought it was going to be too serious, so they didn't bother watching it.
(A) F: I'm sorry, I don't understand. Could you say it again? (B) F: It's your first time watching Frank's show? He's funny, just like you are. (C) F: Oh, my friend. I can see that you are such a fan of Frank Jones' quiz show. (D) F: Dear, Frank is so funny! I'm happy that we are both fans of his quiz show.
Example Output: C

Example Input: F: All the time I was at school, I wanted to be a nurse. But my mother worked in a shop and said it wasn't good to be on your feet all day. ,M: Then what's your job now? ,F: I'm doing what I always wanted to do.
(A) M: I see, you are a teacher now. (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: I see, you are a nurse now, and it's surprised me that you just wanted to be a nurse recently. (D) M: I see, you are a nurse now.
Example Output: D

Example Input: F: Have you heard that our boss wants Nancy to accept a 6-week job in Acapulco?
(A) M: Sorry, I think you have mistaken me for someone else. My name is not Nancy. (B) M: I'm sorry, I don't understand. Could you say it again? (C) M: Of course. All the co-workers in our department know that Nancy is going to China. (D) M: Yes. Our boss said it to me yesterday. I think it is a good chance for her.
Example Output:
D