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: Jack, how have your two sons been doing at school recently? ,M: Don't ask. Mark never start studying and Jason never stop studying. ,F: You are joking. I heard that Jason is likely to be at the top of his class after his exams this year. ,M: Yes, so his teachers say he's been buried in his books every evening for months on end recently. He is hoping to go to Harvard University. ,F: Great. Maybe he'll become a university professor himself in the future. ,M: Maybe, but sometimes I wish he'd go out and enjoy himself for a change. ,F: How about the younger one? ,M: Well, Mark's teachers say he has ability, but he rarely does his best. He does his homework in 10 minutes every day and then rushes out to play football. ,F: But he can make his fortune at football. People can make a lot of money from sports now. ,M: My wife always worries about their future. She wants Mark to study law. I don't believe in forcing them. But I wonder how Mark will progress over the next few years. ,F: Perhaps you, you can have a talk with him now to find out what he's thinking about his studies and future plans.
(A) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) M: That is right. I should talk with Mark with his future plan. I feel worried about him. (C) M: Good idea. I should talk to my wife about my two daughters. They are too naughty. (D) M: Thanks for your advice. I will have a talk with Mark about his plan for Harvard University.

Ex Output:
B


Ex Input:
M: Wow, this dance is surely cool. There are so many people here. Ah, what's your name? ,F: Susan, Susan Dors. You really don't know who I am? You sit behind me in geography class. ,M: Oh yeah, you're right. I guess I'm just used to looking at the back of your head, not your face. ,F: Are you OK? You're so nervous. ,M: I'm sorry for my strange behavior. I don't know why I pretended I didn't know who you were. I just didn't know how to start the conversation. ,F: That's OK. It's refreshing to talk to somebody who's actually honest for once, so do you like this music? ,M: Not really. I prefer rock and roll mostly. But I like to listen to blues when I'm alone. Anything but this pop stuff. ,F: Oh my gosh. I totally agree. I thought I was the only one.
(A) M: Excuse me, could you repeat the question? (B) M: You are not alone. By the way, the pop playing at the dance sounds awful. (C) M: No, you are not the only. Anyway, I like the blues playing at the dance. (D) M: But I really don't like the rock and roll playing at the dance.

Ex Output:
B


Ex Input:
M: Excuse me, can you help me? I am looking for the lecture hall. ,F: Actually, I'm looking for the lecture hall, too. I think it's in the library.
(A) M: Excuse me, could you repeat the question? (B) M: What do you want to buy? (C) M: How do you think of this film? (D) M: Yes, there is no lecture hall in this college.

Ex Output:

A