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: Could you please turn down the CD a little, Julia? Our son is sleeping. ,F: Sorry, dear. I didn't know.
(A) M: It's OK, my dear daughter, now you need to finish your homework. (B) M: It doesn't matter honey. Our sleeping son is so cute,right? (C) M: Don't worry, our son is listening the pop music. (D) M: I'm sorry, I didn't catch that. Would you mind speaking more slowly?

Ex Output:
B

Ex Input:
F: Good afternoon, sir. Can I help you? ,M: Yes, we need a room for the night. Have you got any rooms available? ,F: Yes. What do you like a single room or a double room? ,M: A double room. ,F: How many nights would you like to stay? ,M: We're only staying overnight. We'll check out tomorrow morning.How much is it? ,F: It's $68 per night.
(A) M: As I'll stay for two nights, it's $136 in total. (B) M: Then I need to pay $68 for the single room. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: So, $204 a night for my single room. Alright.

Ex Output:
C

Ex Input:
F: Queen's Theatre, can I help you? ,M: Yes. Do you have 2 tickets for the show this Saturday? ,F: Well, all the tickets have been sold out, but we still have a few for Wednesday evening and Tuesday afternoon. ,M: Wednesday evening is OK. Have you got 2 near the front? ,F: Let me see. Just 2 tickets near the back. ,M: How much are they? ,F: They are $8 each. ,M: OK. I'll take them.
(A) F: Sure. It will be $8 in total. (B) F: Sure. It will be $16 in total. (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: Sure. It will be $16 each.

Ex Output:
B