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: Good evening. Do you have any rooms available at the moment? ,F: Yes, we do. How many nights do you want to stay? ,M: 4. If it's possible. ,F: OK, let me see. I'm sorry, sir. I'm afraid we can only give you a room for 2 nights. It's a very busy period right now. We're almost fully booked these days. ,M: Alright. I'll just stay for tonight then. It's too late to go to other hotels now. I'll search for another one tomorrow.
(A) F: Thanks for your understanding, I'll prepare a room for you to stay one night. (B) F: Sir, we don't have a room for 2 nights, you can only stay here for one night. (C) F: Are you sure you'll stay for only two nights? We still have many vacancies. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?
Example Output: A

Example Input: F: Have you seen my cat? He is black with white feet. ,M: He was sitting on that grey fence an hour ago. I think he was trying to catch a bird.
(A) F: Are you sure that's my cat? My cat's main color is black. (B) F: So you mean my cat was sitting on that grey fence two hours ago. Are you sure that's my cat? My cat's main color is black. (C) F: My cat's main color is white, and its feet are black. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?
Example Output: A

Example Input: F: Hi, Mark, how are you? ,M: Actually I'm really fed up. It's about Jane. I want to be friends with her, but I just don't know how to make her notice me orâ¦ ,F: Wait a minute. Look, Jane is in your chemistry class, isn't she? You are good at chemistry. You could offer to help with her chemistry homework. How about that? ,M: But she is better than me at chemistry. ,F: OK, well, there's a party at David's house on Friday night. You could invite her to go with you.
(A) M: I have too much chemistry homework to do. I feel so unhappy. (B) M: Yes, she is my PE class. (C) M: I am really annoyed with the Friday night party. (D) M: I’m sorry, I don’t understand. Could you say it again?
Example Output:
D