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: Paul, let's talk about your work experience in South America. What took you there? Was it to improve your Spanish? ,M: Well, I just wanted to find out more about the way people lived there. My spoken Spanish was already pretty good. In fact, I ended up teaching English there.
(A) F: So, your spoken Spanish was not pretty good and you went to South America in order to study English? (B) F: So, you ended up teaching Spanish there and you went to South America to learn about local life? (C) F: Wow, you went to South America to learn about local life? That's great! Let's talk more about your experience! (D) F: Excuse me, could you repeat the question?
Example Output: C

Example Input: M: Thank you for calling the Hillside Gallery. How can I help you? ,F: Hello. Is there a photography exhibition this weekend? ,M: Yes, there is. ,F: How much is the ticket? ,M: Tickets for the gallery are 10 pounds and half price for children, but this includes the painting exhibitions, too. If you only want to see the photography exhibition, it's 7 pounds per person, with half price for children, too. ,F: The gallery's on Flower Street, isn't it? ,M: No, we moved to a different building last year. Our present address is 25 Gardenia Road. It's opposite to the Town Square. ,F: Oh, I see. Does the number 25 bus go by it? ,M: Yes, but I suggest you not take a bus or drive here. You will be stuck in a traffic jam at weekends on this street. The underground is easy and fast.
(A) F: Sure, I will take the bus there as you suggested since it's faster and cheaper. (B) F: I hate traffic jam. In that case, I shall take the underground to go to your gallery. (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: So you think it's better driving there since neither bus nor subway goes there.
Example Output: B

Example Input: F: Hurry up, I've just been told that the meeting will be held an hour ahead of schedule. We only have half an hour left. ,M: It's already 10 o'clock. Let's call a taxi.
(A) F: The meeting will be held at 10:30. Hurry up. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: The class will be over at 10:30. But the meeting will be hold at 11:20. We have enough time. (D) F: Why does the meeting start at half past eleven? It's ten o'clock, isn't it?
Example Output:
A