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: Helen, how do you like your new apartment? ,F: Well, I wish I had moved in, the man who lives upstairs often plays the piano till midnight. I really cannot stand it. ,M: Why don't you ask him to stop? ,F: I've tried, but it doesn't work, he never listens to me. What's worse, he isn't the only one that I cannot stand. The woman who lives next to me often comes over to borrow things, but she seldom returns anything. ,M: Then, don't lend her anything. ,F: Now I don't even open the door when she knocks, but it makes me uncomfortable. I'm afraid I'll have to move again. ,M: You can move in with my sister Susan. The girl Jennifer, who is sharing her apartment has moved out, so she has a free room now. ,F: That's great, your sister is such a good girl. Everyone likes her. I'll call her and move as soon as possible. After all, I need to sleep well at night, in order to do well in the coming exam.
(A) M: Yeah, you never talked to the neighbors before, so it's time to do so. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: Just call her as soon as it's needed. Susan will be happy to help you. (D) M: Sure. I will also call my mom Susan to tell her about your phone call.
Example Output: C

Example Input: F: Your school bag is really cool. Where did you get it? ,M: My aunt sent it from Australia for Christmas.
(A) F: I see, your favorite holiday is Christmas, your uncle bought you a bag for Christmas, right? (B) F: Your aunt sent the school bag to you from Australia. It's so cool! (C) F: It's nice of your aunt to send you a bag from England. (D) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that?
Example Output: B

Example Input: M: I can't believe there's another biology test. There are so many unfamiliar terms. ,F: At least you weren't taking chemistry like me, so many things to remember. ,M: Well, I hear physics classes, even harder.
(A) F: I am really sorry, I did not catch that. Would you slow down, please? (B) F: I can't believe that you find biology tests easy. (C) F: Tell me how do you think of biology test? Did you have a high score? (D) F: Lucky that you take physics. Physics tests are simple.
Example Output:
C