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.

Input: Consider 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: It's a good idea to spend a few days in Chamonix, which makes climbing easier. (B) M: You are so great! Betty, I should learn to you and make a detailed plan. (C) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) M: You climb smaller mountains for training before your third time to climb Everest.

Output: A


Input: Consider Input: F: Excuse me, do you have a few minutes? I work for the Star Bookstore, and we are doing a survey about people's reading habits. I want to ask you a couple of questions.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: I know that bookstore. The Sun Bookstore is very famous. (C) M: You mean you are doing a survey about people's eating habits, right? (D) M: Of course. I am willing to accept this survey. I like reading books.

Output: D


Input: Consider Input: M: What's up? Are you still studying? ,F: Yeah, I'll be at it all night. ,M: When's the big test? ,F: Not for 3 days. But I have too many things to remember before then. ,M: You're taking this Spanish class so seriously. Don't you think you should lighten up a bit? ,F: I can't. Not only do I need to get good grades, but I also have to actually learn this stuff. Next year, I'm applying to a nursing program. And they give special financial help to students who speak 2 languages.
(A) M: To get accepted into a nursing school,you started learning Spanish? (B) M: I didn’t hear you. Please could you tell me again? (C) M: You learn Spanish because they give you money, right? (D) M: You learn Spanish because you want to travel to the American south, don't you?


Output: C