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: Batina and Simon are getting married next month. ,M: Really? How do you know? Have you seen them recently? ,F: Not for ages. I got Batina's call this afternoon. ,M: That's great! I hope will get invitations to the wedding soon.
(A) F: Don't be disappointed. They must have forgot to call us. (B) F: Don't be depressed. Batina is going to be happy with Simon and you will find someone else. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Calm down. Don't be so excited. They won't hold their wedding until next year.
Example Output: C

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: M: Barbara, could you cover for me for a few hours? ,F: I guess so, Sam. I could tell the boss you've gone to buy some office supplies if she asks. ,M: Thanks, I owe you one. ,F: Hey, not so fast, Mister. I need to know where you're going. Why do you need to be gone for that long? ,M: I forgot to get my dad something for Father's Day.
(A) F: That's ok. Get back as soon as you can when you finish buying office supplies. (B) F: That's too bad! Go get your dad a birthday gift! (C) F: Oh that's terrible! You should buy your father a home-coming gift. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?
Example Output:
D