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: Mr Parker. When did you arrive home yesterday evening? ,M: At about 8:00 o'clock? ,F: What did you do right after you entered your flat? ,M: Well, I washed my hands and then watched the Sports News. ,F: When did you have supper? ,M: At about 8:45 I guess. ,F: Did you stay at home all evening? ,M: Yes. ,F: But your friend said, that he phoned you several times between 8:00 and 9:00. But you didn't answer. ,M: Well, I think I was in the bath at that time. ,F: No, you weren't, you were not even at home last night, you robbed a bank in James Street.
(A) M: So, you mean I was not even at school last night and I had been to James Street the night before? (B) M: So, you mean I was not even at home last night and I had been to James Street the night before? (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: Really? You mean I robbed a bank in Smiths Street and I had been to my friend's home the night before?

Ex Output:
B


Ex Input:
F: How about going for a bike ride? ,M: Sure. Where? ,F: Let's call Harry. He can tell us the best place to go.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: Yes. We should ask Harry if he knows the best place to ride. (C) M: Yes. We should borrow a bike from Harry. (D) M: Yes. We should ask Harry if he knows the best place to hold a party.

Ex Output:
B


Ex Input:
M: Where do you want to go, Madam? ,F: The Hilton Hotel, please? Uh, it's cold, huh? I'm freezing. ,M: Come on, San Francisco's usually cold in winter, you know? It's often very rainy, which makes the weather colder. ,F: Well, it gets very hot in summer, doesn't it? ,M: Not really, it gets warm in July and August. That's the best time to visit the city. Ah-oh, here comes the rain.
(A) F: I agree with you. April in Spring is the best time to visit the city. (B) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) F: I agree with you. Summer is the best time to visit Beijing. (D) F: I agree with you. Summer is the best time to visit San Francisco.

Ex Output:

D