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: Wow, this dance is surely cool. There are so many people here. Uh, what's your name? ,F: Susan, Susan Dawes. 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.
(A) F: It's okay, you behaved cool just now. (B) F: So every time you don't know how to start a conversation, you behave awkward, right? (C) F: Never mind, you are polite. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?

Ex Output:
B


Ex Input:
M: Well, any luck? Did you see Buster anywhere? ,F: No, I couldn't find him either. I drove all around the neighborhood. I circled our block 3 times, hoping he'll show up. No such luck. I'm sorry, Ben. ,M: It's not your fault. I shouldn't have left the door open. I hope we'll find him. He is such a huge part of our family. He walks with Lily to school every morning. ,F: I'm sure we'll find him. Ben, I remember when I lost my dog, Spot. We looked for 10 hours and finally we just gave up. Not long after we got home, Spot showed up at our front door. They know how to get home, Ben. They always do. ,M: I hope you're right, Lucy. Maybe he'll show up before it gets dark. I just hope he's OK. ,F: He will be, Ben. He has always been loyal to you and your family. He's probably just off exploring.
(A) M: I really hope so. By the way, thank you for helping me looking around our neighborhood. (B) M: I'm just worried. As a neighbor, I know you never raised a dog, so you won't understand it. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: It's fine, Lily. You may leave the office now and pick up your son Buster from his school.

Ex Output:
A


Ex Input:
F: Are you busy this week, Sam? ,M: Not particularly. I'm reviewing my lessons until Wednesday, because I've got an exam. But that only lasts until midday and then I'm free.
(A) F: OK. I will come and find you on Tuesday afternoon since you won't be busy then. (B) F: OK. I will come and find you on Wednesday morning since you won't be busy then. (C) F: Well, good luck on your test on Wednesday afternoon. (D) F: Excuse me, could you repeat the question?

Ex Output:

D