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: Hello, this is the International Student Office. This is Leah. How may I help you? ,M: This is Nathaniel Brown, from English Department. I'd like to speak to Miss Collins about my accommodation situation. ,F: Well, I'm sorry. She is out for lunch at the moment. Can I take a message?
(A) M: No thank you. I will wait for her to finish the meeting. (B) M: Sure. I want to have a talk with her about my accommodation situation. (C) M: Sure. I want to have a talk with her about my department. (D) M: Excuse me, could you repeat the question?

Ex Output:
B


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:
F: Are you going to wear a long coat or a short coat? ,M: I'm going to wear a long one. ,F: Is it going to be a big party or a small party? ,M: It's going to be a small one.
(A) F: Hope you enjoy this big party. (B) F: Oh, you're going to a small party. No wonder you don't wear the coat. (C) F: I didn’t hear you. Please could you tell me again? (D) F: The short coat you choose for the party suits you well.

Ex Output:

C