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.

Example Input: M: Hey, May, how are you getting to Xi'an next week? ,F: I'm not sure yet. I may take the train, but then again, I may take the bus. ,M: But the bus takes a long time. You could fly. It's not so expensive these days.
(A) F: You have a point. I'm going to check out if it's cheaper to get there by plane. (B) F: It's so nice of you to go there by bus with me together. (C) F: Thank you, I like travelling by train as well. (D) F: I’m sorry, I don’t understand. Could you say it again?
Example Output: A

Example Input: M: When will we meet at the cinema? ,F: Tom can leave school at 4:00 o'clock. I may get there at 5:00 o'clock. Let's say 6:00 o'clock.
(A) M: So let' meet at 6:00 o'clock. (B) M: So let' meet at 5:00 o'clock at the restaurant. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: So let' meet at 6:00 o'clock at the restaurant.
Example Output: A

Example Input: F: Hi, there, what are you looking forward today? ,M: I'm just looking. ,F: Well, how about a ring for someone special? ,M: There is no one special. ,F: Well, take a look at this CD player. A great bargain, today only. ,M: No, I already have one. Plus, the handle is damaged. ,F: OK, what about this leather jacket? It would look great on you. ,M: Emm, brown is the one color I hate. I'll pass. ,F: OK. Well, wouldn't you like to walk home with some of these great records, some of the best hits from the nineteen sixties. ,M: Yeah, let's see. Now here's something I'd, ah, these records are all scratched. ,F: Just in a couple places, listen. I'll sell you these 10 records for $50 a steal. ,M: Wow, they're way too expensive. I'll give you $25 for them. ,F: Ah, come on, I can't charge you less than $30 in break-even. ,M: Well, that guy over there is selling similar records for a much better price. So, thanks anyway. ,F: Wait, wait, wait! You drive a hard bargain. $28 and that's my final offer. ,M: Emm, I'll take them.
(A) F: OK, $25 for the CD player. (B) F: Great, I got $30, you got 20 records! (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: Deal, $28, you take all these 10 records with you.
Example Output:
D