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: Where are you going to take your vacation? ,M: Hawaii. ,F: That sounds like a great place to visit. Is your family going? ,M: Yes, we plan to go mountain climbing, fishing, swimming and windsurfing. But most of all we are planning to relax. My wife is taking a whole bunch of books to read.
(A) F: Although your wife just take one book, I know she is really fond of reading, right? (B) F: Oh, I think your wife must love reading very much, like her I always take books when traveling. (C) F: The trip to China must be very interesting, that's why your wife is counting down the days. (D) F: Excuse me, could you repeat the question?
Example Output: B

Example Input: M: Welcome back to your student union radio station. I'm with Catherine, who just successfully climbed the Great Mountain, Mont Blanc. Actually, she once did. The same climb in 2007. Catherine, was it easier the second time around? ,F: In many ways. They were totally different experiences. The first time I went as part of an organized group. We took 4 days to reach the top. This year, I decided to go alone with just one overnight stop, actually you're never really alone. It's all been crowded up there. The first climb, was quite difficult is the weather was very changeable, and we found ourselves climbing in very cold windy conditions. The weather this time was wonderful. Plus. I spent a few days before in chamonix and got myself more used to the height. If it's certainly made it easier, you can also achieve the same thing by climbing some of the smaller mountains first.
(A) M: You are used to climbing mountains in a group, and you never climb alone. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: You are so brave that you successfully climbed the Mont Blanc on your own. (D) M: You climb mountains with a guide? No wonder you just took 2 days to reach the top.
Example Output: C

Example Input: F: Excuse me. Can you speak Chinese? I like Chinese very much. ,M: Yes, I'm from Taiwan. I came here to study political science, but my English needs improving. I make too many grammatical mistakes. ,F: I want to study Mandarin and international relations. Maybe we could do a language exchange.
(A) M: Good to hear that you like to learn English and political science like me. (B) M: I am really sorry, I did not catch that. Would you slow down, please? (C) M: You prefer French and international relations? It is a good combination. (D) M: Wow, I do think international relations is a good choice for you to learn.
Example Output:
D