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.

Ex Input:
F: Hello, Tom. How are you finding teaching here? ,M: I get the feeling that somehow the school successful. The buildings and furniture are so old, yet amazingly, the students seem happy. These days you can't compete in less you can really provide the best. That's the trouble with these small family owned schools, so many are taken over by large companies. They seem to offer a whole range of subjects, not just English and maths. ,F: I think that's good. Because they can bring together a mixture of teachers of different subjects. A geography teacher say might give you fresh ideas that you can apply and teaching English or math. ,M: I've always found it a real eye opener talking to other English teachers, because people's methods of teaching the same subject can vary so much. Actually, I sometimes feel that about classes. I feel it's my role as the teacher to make sure we get on all right, but I can't always do it.
(A) F: Really? You feel it's your role as the teacher to make sure we get on all right and you can always do it? Wow, you are a good math teacher! (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: So, you mean as an English teacher, you feel it's not your role as the teacher to make sure we get on all right? (D) F: OK, I see. And I think you are a good English teacher.

Ex Output:
D


Ex Input:
F: Dad, look at this friendship quiz. ,M: Why don't you try it? The first question, how often do you get in touch with your friends? ,F: Hmm... My friends aren't in the same secondary school as me, and I dislike ringing people up. I don't call my friends, even once a week. ,M: That means seldom. Secondly, how many friends can you talk with when you are upset? ,F: Oh, I can't think of any. I usually talk with you or mom when I feel sad.
(A) M: Poor Susan. So you usually talk with your friends when you're upset. (B) M: Poor Susan. So you usually talk with me and your mother when you're upset. (C) M: Poor Susan. So you usually talk with me and your mother when you're happy. (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.

Ex Output:
B


Ex Input:
M: I was awaken up in the middle of the night. I felt the building shaking. ,F: What time did it happen? ,M: I don't know. It was dark everywhere. I couldn't see the clock. Luckily, I lived on the second floor. I hurried to run out. With the Moonlight I found it was 2:45. ,F: Did your building fall down? ,M: No, but it was seriously destroyed. A few buildings near hours fell down. I could hear someone calling for help. I was sure they were badly hurt.
(A) F: Oh, it is so luck that you lived on the second floor. (B) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) F: Really? You could not hear anyone calling for help? Oh,  it is so luck that you lived on the second floor. (D) F: So, you mean your building was not seriously destroyed? I think it is so luck that you lived on the third floor.

Ex Output:

A