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: I can't imagine what's happened to Judy. ,M: Nor can I. I'm sure she planned to come to the party.
(A) F: But she hasn't appeared in the party. I feel worried. (B) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) F: Judy didn't know there's party today, so she doesn't show up. (D) F: I know she changed her mind. She won't come.

Ex Output:
A


Ex Input:
F: Are you going to be an engineer when you grow up? ,M: Yes, what about you? ,F: I want to be a teacher, but my parents want me to be a doctor.
(A) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) M: Oh, you want to be a teacher in the future. (C) M: Your parents want you to be a teacher in the future. But you want to be a doctor when you grow up, right? (D) M: You want to be a doctor when you grow up, right?

Ex Output:
B


Ex Input:
M: Do you want to get some lunch with me? ,F: Sure. You mean from the coffee shop in the mall? ,M: I eat there every day. Let's eat somewhere else for a change. I was thinking of Romano's. And don't worry, today it's on me. I got a reward from my boss for my good work. ,F: Great. That's very kind of you. We'll take my car or at least let me pay for the taxi. ,M: There is no need. They just opened up a new one a couple of blocks away. I could use the fresh air anyway. ,F: Sounds good.
(A) M: Yeah, we will go for the lunch on foot although they opened up a new one many couples of blocks away. (B) M: Okay. We will go for the lunch on foot. (C) M: OK, I see. As I could not use the fresh air anyway, we will go for the lunch by car. (D) M: Excuse me, could you repeat the question?

Ex Output:

B