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: Hi, Helen, I saw you yesterday with a lovely little girl at the market. Your daughter? ,F: No, she's my sister's daughter, she's just visiting and will be staying with us for a couple of days.
(A) M: Oh, that's your niece then, she's really cute. (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: Your niece is so cute, I didn't know your brother had a daughter. (D) M: Your daughter looks a lot like you.

Ex Output:
A


Ex Input:
M: Have you received a chapter 16 of supermarket killers yet? I think there's something wrong with my phone. ,F: Nobody has received it yet. I really want to know what happens, the suspense is killing me. ,M: Exactly. You know, I think 20 Chapters is too short. I hope his next story is 30 chapters long.
(A) F: I agree with you. I also think 20 Chapters is too long. Let's talk more about this story. (B) F: Yeah, I agree with you. Let's talk more about this story. (C) F: I am really sorry, I did not catch that. Would you slow down, please? (D) F: Yeah, I really don't want to know what happens. Let's talk more about this movie.

Ex Output:
B


Ex Input:
F: Aren't you getting off at the next stop? ,M: You're right. That's where I usually get off for the office. But it's early so I thought I'd stay on as far as the High Street and do a couple of things there. ,F: Some shopping? ,M: Yes, after I've given this book back, I've just finished the last chapter and it's a few days late, so I have to pay a fine, but it is worth it.
(A) F: Yes, it's already late for you. I understand you'll have to rush to office now. (B) F: Excuse me, could you repeat the question? (C) F: I see, you need to go to the library first. Well, I also think this book is brilliant. (D) F: Oh, you'll go shopping on the Low Street before returning the book in advance.

Ex Output:

C