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: 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: M: Hello, Clark Cycle here. How can I help you? ,F: Oh, hello. I saw your ad in the local paper and I'm wondering what kinds of bikes you have, and what your prices are like? ,M: Well, we hire out 3 main types of machine, electric touring and mountain bikes. Are you likely to be riding off-road, do you think? ,F: No, I'll probably be sticking to roads. So, we're touring bike would be best. ,M: Right, well the rate will be 50 pounds for a week or 14 pounds per day. ,F: So it's a lot cheaper to rent by the week. Is there anything else I'd have to pay? ,M: Well, for another 5 pounds, we can supply lightweight bags. There is no charge for things like a pump or for a lock. It's a good strong one, just make sure you don't lose the key.
(A) F: Yeah, it's not a good strong one and cannot make sure I don't lose the key. And you mean the lock needs extra charge, right? (B) F: Really? For another 4 pounds, you can supply lightweight bags for me? So, the bag needs extra charge? (C) F: For another 5 pounds, you can supply lightweight bags for me? So, the bag needs extra charge? (D) F: I'm sorry, I didn't catch that. Would you mind speaking more slowly?
Example Output: C

Example Input: F: We're visiting some friends at the weekend. What about you? ,M: Oh, I'm just staying at home.
(A) F: You always go out at the weekends. Join us and visit some friends. (B) F: You never go out during weekends. (C) F: Oh, have a nice holiday. (D) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?
Example Output:
B