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: Next week I'm going to New York to sign a business contract. What would you suggest I see while I'm there? ,F: You should definitely see the UN Building and from there, you could walk over to Broadway and see a movie or drama. ,M: How about New York's universities? I'm especially interested in learning about their schools there and the courses they offer. ,F: Columbia University and New York University are two of the best schools in the city. I'm sure they offer excellent courses. ,M: Do you have a map of the city? ,F: Yes, I have one right here in fact. I can give you this one but I'd also suggest that you stop at the visitor's office near the train station. They will have good up-to-date maps and they can give you more tourist information about the city.
(A) M: I'm sorry, I didn't understand. Could you repeat a little louder, please? (B) M: OK, I will ask visitor's office for help as soon as I get lost. (C) M: OK, I will get a map on visitor's office. (D) M: I will take a map at the UN office directly.
Example Output: C

Example Input: M: Ma'am! You forgot your phone. ,F: Oh, thanks. I couldn't live without this little thing. ,M: I know what you mean. It is of great significance to you. So, did you enjoy your dinner?
(A) F: Oh, yes. It's strange. I never forget my phone anywhere. (B) F: Oh, yes, I want to thank you again. The phone is extremely important to me. (C) F: I'm sorry, I didn't understand. Could you repeat a little louder, please? (D) F: Oh, yes. I really enjoy the service with my phone.
Example Output: B

Example Input: F: May I leave the office early today? I have to pick up my parents at the airport. ,M: But you're supposed to meet Mister Black at 4:00 o'clock, aren't you? Can't you ask someone else to go to the airport?
(A) F: I didn't hear you. Please could you tell me again? (B) F: Why can't I leave early? I'm going to meet my parents at the railway station. (C) F: So you mean I can't leave early today, right? (D) F: You mean Mr. Black won't come at four o'clock? Then I can pick up my parents at the train station.
Example Output:
C