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:
M: Can I help you Madam? ,F: Yes, thank you. I seem to have lost my room key. ,M: Take it easy. You can go to the front desk to get the spare one.
(A) F: Thank you. I'll go to the front desk and get the spare key right now. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: Okay, I won't leave the office until you give me the spare car keys. (D) F: Thank you so much for helping me check in.

Ex Output:
A

Ex Input:
F: Excuse me. I will stay in the city for a few days and I'd like to know what's on. ,M: Well, there's a teahouse at the Capital Theater. They say the play is very good. ,F: When is it on exactly? ,M: Every night except Sunday. Hold on...Yes, the show will run until the beginning of July. It begins at 8 o'clock and lasts more than 2and a half hours, finishing at 10:45. Here, take this flyer. It tells you more.
(A) F: I've never thought before that the old house is yours. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: Thank you for telling me the information about the play. (D) F: The famous theater is mine, you don' t know it!

Ex Output:
C

Ex Input:
F: Hi, Tim. Did you have a good holiday? ,M: Wonderful. Thanks. I'm at lots of my friends on the beach and we swam every day. How about you?
(A) F: I had a lovely holiday, too. I guess you had a happy time by the sea. (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: I had a lovely holiday, too. I went to the same mountains, where you spent your holiday. (D) F: I had a lovely holiday. I guess you didn't have a happy time by the sea.

Ex Output:
A