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: Thank you for calling the Hillside Gallery. How can I help you? ,F: Hello. Is there a photography exhibition this weekend? ,M: Yes, there is. ,F: How much is the ticket? ,M: Tickets for the gallery are 10 pounds and half price for children, but this includes the painting exhibitions, too. If you only want to see the photography exhibition, it's 7 pounds per person, with half price for children, too. ,F: The gallery's on Flower Street, isn't it? ,M: No, we moved to a different building last year. Our present address is 25 Gardenia Road. It's opposite to the Town Square. ,F: Oh, I see. Does the number 25 bus go by it? ,M: Yes, but I suggest you not take a bus or drive here. You will be stuck in a traffic jam at weekends on this street. The underground is easy and fast.
(A) F: Sure, I will take the bus there as you suggested since it's faster and cheaper. (B) F: I hate traffic jam. In that case, I shall take the underground to go to your gallery. (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: So you think it's better driving there since neither bus nor subway goes there.
Example Output: B

Example Input: F: John, when was Tom born? ,M: He was born on May seventh 1982. He is 4 years older than I am, but our birthdays are on the same day.
(A) F: Oh, you mean you were born in 1982 and you are 4 years older than Tom? (B) F: I can't believe that you were born in 1986 and you are 4 years older than Tom. (C) F: I’m sorry, I don’t understand. Could you say it again? (D) F: Since you are 4 years older than Tom, so you must have been born in 1978.
Example Output: C

Example Input: M: Hello, I bought a shirt in your shop this morning. ,F: Yes. ,M: I bought 1 size too large by mistake. ,F: Oh, did you? ,M: I wonder if you could change it for one size smaller. ,F: Yes, of course. Please bring your receipt when you come.
(A) M: OK. I want to buy a skirt. (B) M: I didn’t hear you. Please could you tell me again? (C) M: Okay, I'll come and change the shirt tomorrow. (D) M: OK, I'll come for your interview tomorrow.
Example Output:
C