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: Hey, Jenny, what's the matter? ,F: I was just online in a chat room with three Germans. They used a lot of idioms on purpose and I didn't understand, so I asked them what they meant. Then they started to ignore me and after a while I started to feel stupid. ,M: Oh, you shouldn't. Your German is really good. ,F: But it seems they were using their German ability to have fun with each other. They didn't really want to include me. ,M: Well, some people are like that. That's all. You can't let them bother you. One nice thing about chat room is that you can leave and go to another one.
(A) F: I agree with you. The advantage of the chat room is that you can make more friends. But you can't enter or leave freely. (B) F: I agree with you. The advantage of the chat room is that you can express yourself freely. But you can't enter or leave freely. (C) F: I agree with you. The disadvantage of the chat room is that you can enter and leave freely. (D) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that?

Ex Output:
D

Ex Input:
M: Hi Marina, I'm sorry to keep you waiting. I bought a map in the bookstore. ,F: Oh, we don't need a map at all. I'll be your tour guide. I'm familiar with every corner of the city. Chinatown, Broadway, Central Park, the Natural History Museum.
(A) M: I'm sorry, I didn't understand. Could you repeat a little louder, please? (B) M: I guess your hometown is in England, am i right? (C) M: No wonder you are so unfamiliar with America? (D) M: You really embody the typical American character.

Ex Output:
D

Ex Input:
F: Excuse me? I want to go to Broadway on Eighty-second Sreet. Can I take any bus that comes along? ,M: You can take any bus except the No.9. ,F: How often do the buses run? ,M: They run about every 5 minutes. ,F: Fine. How long does it take to get to Eighty-second Street? ,M: About 15 minutes. It's not very far. Are you a stranger here? ,F: Yes, I am. ,M: How do you like New York? ,F: I like it very much. The weather, the lifestyle, but the way people talk here is a little confusing to me. It's hard to understand.
(A) M: Why are you confused about the weather here? (B) M: So you don't understand the way people talk here, right? (C) M: Why are you confused about the life style here? (D) M: Excuse me, could you repeat the question?

Ex Output:
B