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 talk to you for a minute, Professor Smith? ,F: Sure, David. What can I do for you? ,M: I didn't get to copy down all the terms you mentioned in today's lecture and I know they were important.
(A) F: I am really sorry, I did not catch that. Would you slow down, please? (B) F: Thank you for trusting me and ask me for help with today's lecture. What kind of problem do you have? (C) F: Robin, I am sorry to know that you have missed all the classes last week, but it will not influence your final grade. (D) F: It is good that you want to learn how to take notes. Since there is no lecture today, let's review last week's class.

Ex Output:
B

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:
M: What will you do after graduation, Rose? ,F: I'd like to be a computer programmer. ,M: A computer programmer. Why? ,F: I want to make more money. I see my parents working in the restaurant every day but they don't earn much.
(A) M: Your father works in a computer company? Good for him! (B) M: I'm sorry, I didn't understand. Could you repeat a little louder, please? (C) M: Your father works in a restaurant? That's nice. (D) M: Your father works in a university? That's nice.

Ex Output:
C