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: Is everything ready for the meeting? ,F: Almost. I'm done with the tables and chairs and I've set up microphones as well. The only thing left to do is put the cups on the table.
(A) M: Hurry up and set the cups! (B) M: You have to set up the tables and chairs now. (C) M: You have put the cups in place. Then it's time to mop the floor. (D) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that?
Example Output: A

Example Input: F: These trousers turned out to be too small for my daughter, so I've brought them back for larger ones. ,M: Certainly, madam. We will take them back if you have your receipt with you.
(A) F: My son said the trousers were too tight for him, so I have to change for bigger ones. (B) F: Here is the receipt. I'll wait here when you change larger trousers. Thanks. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: You are the best tailor nearby. Please make these trousers larger.
Example Output: B

Example Input: F: Excuse me. Can you speak Chinese? I like Chinese very much. ,M: Yes, I'm from Taiwan. I came here to study political science, but my English needs improving. I make too many grammatical mistakes. ,F: I want to study Mandarin and international relations. Maybe we could do a language exchange.
(A) M: Good to hear that you like to learn English and political science like me. (B) M: I am really sorry, I did not catch that. Would you slow down, please? (C) M: You prefer French and international relations? It is a good combination. (D) M: Wow, I do think international relations is a good choice for you to learn.
Example Output:
D