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: Are you busy tonight? I was wondering if you could drive me to the airport. ,M: The airport? But that's so far away. ,F: It would really help me out. My car isn't working.
(A) M: I will fix your car, but you need to take a taxi to the train station. (B) M: I will drive you to the airport. (C) M: I can give you a lift and drive you to the train station. (D) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?

Ex Output:
B


Ex Input:
F: Charlie, do you know a restaurant called Bravo? ,M: Bravo? I know the name, but I'm not sure where it is. ,F: It's on George Street. The food there is excellent.
(A) M: Oh, I'm sure where it is. Let's talk more about its dish. (B) M: Excuse me, could you repeat the question? (C) M: Oh, really? It is not on George Street? Let's talk more about this street. (D) M: Yeah, the food there is excellent. Let's talk more about this restaruant.

Ex Output:
D


Ex Input:
M: Hello, gas bill service, what can I do for you? ,F: Hi, I'm calling about my gas bill for last month, because there are some charges on there that I'm concerned about. ,M: I can review it with you. But first what's your home address and the last name on the account?
(A) F: So can I open a new bank account, Sir? (B) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) F: So can I pay my gas bill in an app Sir? (D) F: I'd like to ask about my Internet bill.

Ex Output:

B