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: Police station, can I help you? ,M: Yes, I'm calling to tell you I found a car. I thought it might be a stolen car. ,F: I see. Where exactly did you find it? ,M: Near the number 8 bridge along the London Road? ,F: Can I know your name and address please? ,M: Henry Roberts. I live at 51 Eaton Road. ,F: What do you do, Mister Roberts? ,M: I'm an engineer at backs at company.
(A) F: I see. You are an engineer, aren't you? What else did you find? (B) F: Oh, you are also a policeman. Why do you need to call us? (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: I see. You are a driver and you have found a stolen bike.
Example Output: A

Example Input: M: How was the airplane ride yesterday? ,F: It couldn't be worse. It was a 12-hour flight and the couple sitting next to me kept talking all the time. ,M: That was really annoying! Why didn't you listen to some music? ,F: My ears ached when I listen to music, so I had to stop listening to music.
(A) M: I am really sorry, I did not catch that. Would you slow down, please? (B) M: It is good that you want to chat with the couple on the train, you can make friends with them. (C) M: Sure. When you travel on a train, your ears will ache when you listen to music. (D) M: I know your ears will ache when you listen to music. You should see the doctor.
Example Output: D

Example Input: F: I'm thinking of buying a shirt for my father's birthday. ,M: A shirt again? Last year, you also sent him a shirt.
(A) F: He didn't like the shirt I gave him last year as a birhday gift. (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: I agree with you. I'd  better buy something else for him as his birthday gift. (D) F: I agree with you. I'd  better buy something else for him.
Example Output:
D