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: Excuse me, are you the person who has a house for sale? ,F: Yes, I am, come in. Let me show you around. ,M: Thank you very much. How long have you lived here? ,F: I've lived here since I was married, my husband and I had our twentieth wedding anniversary yesterday. ,M: Wow! Congratulations! Then why do you want to sell it? ,F: I am going to retire next year, my husband is opening a small book store in Sydney. So I want to move there to help him.
(A) M: It is good to hear that you want to use the money to buy a small bookstore for your husband in New York. (B) M: Even though you are not together now, you still want to move to Sydny to find him. What a lovely couple! (C) M: It is good to sell the house and move to Sydney, but how about your job? You haven't retired yet. (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.
Example Output: B

Example Input: M: Excuse me, Miss Ames, can I ask you something? ,F: Sure, John. Ask me anything. ,M: OK, would you please oil your door? ,F: What? ,M: You always come home so late. And whenever you open the front door, it makes a lot of noise. ,F: What do you mean late? I come back around 11:00. That's not late at all. ,M: Well, you spend hours after that going in and out, in and out, until my head feels ready to burst.
(A) F: Yes, I'm sorry to hear that. I usually come home late at night. (B) F: No. I never come home late at night. (C) F: No. You're bullshit. I usually come home in the middle of the day. (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: A

Example Input: F: You look very anxious this evening. Is there anything wrong? ,M: I'm worried about my 15 year old niece Helen. ,F: What's worrying you. ,M: I've seen a big change in her. She used to be very outgoing and sociable, but now she is having problems with other children at school. Now, she is totally someone else. ,F: Really? ,M: Yes. Now, she is quiet and doesn't want to talk to anyone else. Her teacher said things are going backward in her study.
(A) F: I see. You think that your daughter Helen is having problems with her teachers, right? (B) F: Excuse me, could you repeat the question? (C) F: You mean that Helen has changed a lot in terms of character. How does that happen? (D) F: Though you worry about Helen's relationship with parents, she's doing well in study anyway.
Example Output:
C