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: Hasn't it been hard for you without your sister and brother, mom? ,F: Yes, Sam, of course. We haven't seen each other for a long time. ,M: Mom, I have a surprise for you. I'll go on a business trip to Russia. I want you to come with me. You can meet them finally. ,F: No, Sam. It's very thoughtful of you, but I'm too old and sick to travel so far.
(A) M: Really? You don't think you are old and sick to travel? And you refuse my invitation because you haven't prepared for the trip? (B) M: OK, I see. You refuse my invitation because you are unsuitable for such a trip and you think you are too old and sick to travel so far. (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: Really? You think you are not sick to travel but you refuse my invitation because you prefer to travel with your sister?
Example Output: B

Example Input: F: Hello, Mr.Smith. This is Janet Bush. ,M: Hello, Miss Bush. ,F: I'm afraid I'm going to be late for our appointment. My friend was supposed to pick me up from the airport, but she just called me and said she is stuck in traffic downtown so she won't be here right now. It's 11 now, so there is no way I'm going to the restaurant at 11:30 as we planned. I wonder if we could reschedule our appointment to sometime this afternoon? ,M: Certainly. What about 2:00 o'clock in my office? ,F: That would be fine. See you then. ,M: See you.
(A) F: Excuse me, could you repeat the question? (B) F: OK. You should be at my friend's house at two in the afternoon. See you. (C) F: OK. I will be your office at 3:00 pm. See you. (D) F: OK. I will be your office on time. See you.
Example Output: D

Example Input: F: Excuse me, can you tell me where I can find dresses for teenagers? ,M: Yes, there on the left next to the purses, but don't you think you should look for something uh a bit more mature?
(A) F: You are right. I should find something more mature for my niece like you suggested. (B) F: Yes, I am shopping for my daughter. I am looking for clothes for young adults. (C) F: Yes, I'm shopping for myself. I am looking for clothes for young adults. Where are they? (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:
D