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:
M: Can I have my bill, please? ,F: Yes, one moment, please. ,M: Do you take credit cards? ,F: Sorry, we don't accept checks, either. You have to pay in cash.
(A) M: OK. I'll pay by credit card. (B) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) M: Fine. I will pay by cash. (D) M: You don't accept cash? How about credit card?

Ex Output:
C


Ex Input:
F: I heard you went to Las Vegas. What did you do? ,M: Well, we went shopping a lot. We went and visited the Hoover Dam. ,F: That's a lot of water. Did you go swimming? ,M: No, it's not warm enough for that.
(A) F: Why didn't you go shopping in Las Vegas? (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: You failed to swim in Hoover Dam in Las Vegas but you swam in somewhere else there, right? (D) F: Why didn't you visit the Hoover Dam in Las Vegas?

Ex Output:
B


Ex Input:
M: What are you going to do after you leave school? ,F: I plan to go to university, but first I want to take a year off to get some work experience abroad. ,M: Great. A trip abroad can help you learn more about the world and introduce you to new people and experiences. But it will cost a fortune to go abroad. ,F: So, at the moment I'm working at a local supermarket and I'm going to save all my money. Then I'd like to travel to somewhere like Australia if I can afford it.
(A) M: To be honest, while it's cheap and easy to go abroad, I don't think it's worthy the effort. (B) M: Oh, you want to go to Austria, but not Australia. Then this trip abroad would cost a lot. (C) M: Excuse me, could you repeat the question? (D) M: But trips abroad won't help you learn anything about the world. It's just a waste of time.

Ex Output:

C