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 did you get this calendar, Ricky? It covers your whole desk. ,M: I ordered it online. I'm sure if you ask Mr. Dennison in the finance department, he'll order one for you, too.
(A) F: What size skirt do you want, miss? (B) F: I went through the formalities this morning and we are no longer colleagues. Good luck. (C) F: I didn’t hear you. Please could you tell me again? (D) F: Oh, thank you for telling me that. I'll call him right now.

Ex Output:
D


Ex 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.

Ex Output:
C


Ex Input:
M: Excuse me, Miss Ames, can I ask you something? ,F: Sure, John. Ask me anything. ,M: OK, would you please oil your door? ,F: What? ,M: You always come home so late. And whenever you open the front door, it makes a lot of noise. ,F: What do you mean late? I come back around 11:00. That's not late at all. ,M: Well, you spend hours after that going in and out, in and out, until my head feels ready to burst.
(A) F: Yes, I'm sorry to hear that. I usually come home late at night. (B) F: No. I never come home late at night. (C) F: No. You're bullshit. I usually come home in the middle of the day. (D) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?

Ex Output:

A