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: F: Good morning, sir. May I come in? ,M: Good morning. Yes, please. Take a seat. I guess you want to open an account, right? ,F: Yes. ,M: Great. What account do you want to open? A checking account or a saving account? ,F: I would like to open a saving account in your bank. What is the procedure? ,M: Would you like to open an account in a single name or in joint names? ,F: I would like to open a joint account with my father.
(A) M: OK. You want a saving account with a single name, don't you? (B) M: Sure. You need to open a saving account in joint names with your mother. (C) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) M: OK. Why do you want to open a checking account in a single name?
Example Output: C

Example Input: F: Max, you wanted to ask me something? ,M: Yes, Professor Jones. I'm applying to this University in Singapore. I was hoping you could recommend me.
(A) F: Really? You are applying to this University in America and you expect me to study in this university? (B) F: So, you mean you are applying to this museum in Singapore and you expect me to travel to Singapore? (C) F: Oh, I see. You expect me to write a recommendation letter for you because you are applying to this company in Singapore. (D) F: I didn’t hear you. Please could you tell me again?
Example Output: D

Example Input: M: Wow, what a long line behind us. Seems like Chinese people are all here. ,F: I can understand. I mean it is more convenient taking a flight back home town during the Spring Festival. ,M: Oh, it's your turn to check in.
(A) F: It's a tourist season. There are so many people at the airport. (B) F: Where do I check in and board the plane? (C) F: Excuse me, could you repeat the question? (D) F: Which line of bus you will take?
Example Output:
B