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.

Ex Input:
F: Where will we go during this break? ,M: I was thinking of a place in Mexico. Do you remember when we went to that really hot place several years ago, where the water was almost as warm as the air, and we had a hard time sleeping at night? ,F: Yeah. ,M: I'd like to go back there. ,F: But... ,M: Don't worry though. We went during the summer last time, August I think. This time it'll be winter. It's perfect weather there in January. And we'll be able to watch the whales that live there from December to February.
(A) F: All right. So let's go to Mexico in January. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: You're right. So let's go to Japan in February. (D) F: I agree with you. So let's go to Japan in August.

Ex Output:
A

Ex Input:
M: Hi, Rosa, what are you doing? ,F: I'm trying to pick an English literature course for this term. ,M: Take Professor Holds class. I took hers last year. ,F: Really? What's she like? ,M: Fantastic. I think she is really a good teacher. ,F: Why? What makes her so good? ,M: For one thing, she is really funny. She's also smart. So you learn a lot. ,F: What do you think of Professor Vance? ,M: He is boring. Most students fall asleep in his class and he is hard to talk to.
(A) F: I didn't hear you. Please could you tell me again? (B) F: Really? You think he is easy to talk to and you think Professor Holt's class is ordinary? (C) F: So, many teachers fall asleep in his class and you think Professor Holt's class is attractive? (D) F: So, he is hard to talk to and you think Professor Holt's class is attractive? Okay, I see.

Ex Output:
D

Ex Input:
F: Let's take out the extra desks. There are only 8 judges for our contest. ,M: I think we'd better leave some for the students who are taking part in the contest.
(A) F: I'm sorry, I didn't catch that. Would you mind speaking more slowly? (B) F: Yes. I hope the party we are preparing will be great. We also need to leave some desks for teachers. (C) F: That's good. We should arrange some desks for the students who aren't taking part in the contest. (D) F: All right. I am looking forward to joining the contest where there are only 3 judges.

Ex Output:
A