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: F: You can speak German? Where did you learn it? ,M: I used to live in Germany with my mother when I was little.
(A) F: So you acquired German when you lived in Germany. (B) F: I didn’t hear you. Please could you tell me again? (C) F: Oh, you are a German, so you speak fluent German. (D) F: You and your dad used to live in Germany? Now I understand why you speak German.
Example Output: A

Example Input: F: Why did you come to school by bike today? Is there anything wrong with your father's car? ,M: No, I just want to do what I can to protect the environment. ,F: That's a wonderful idea. I'll stop taking my father's car, too. ,M: That's great.
(A) F: Although your father's car broke down, we are students and this is what we should do. (B) F: As students, this is what we should do. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Since our son's car broke down, we should fix it as parents.
Example Output: B

Example Input: F: Next, please. ,M: Hi, I bought this DVD player here last Saturday, but it's not working properly. ,F: What's the matter with it? ,M: Well, several things. First of all, the remote doesn't work. ,F: Did you put batteries in it? ,M: Yes, of course. But it still didn't work. I couldn't change any of the functions on the display. It also doesn't fast forward when I'm playing a DVD. ,F: Well, I'm sure that it's just a problem with this one player. I've never seen this with any of the models made by this brand. Do you want any of exchange it or return it? ,M: I'd like to return it.
(A) F: Sure, I'll find someone to repair the DVD player which you bought yesterday. (B) F: Sure, Can I have you receipt? You know, we need the receipt if you want to return it back. (C) F: Sorry, you can't return it back. But we can change it into another one, if you like. (D) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that?
Example Output:
B