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: What are your specials today? ,M: We have our usual soup and fruit salad, the soup choices are tomato soup and mushroom soup.
(A) F: Oh, as a fruit store, how can you not have any specials. (B) F: I'm sorry, I didn't catch that. Would you mind speaking more slowly? (C) F: Yeah, but your supermarket doesn't have fruit salad, right? (D) F: Why doesn't your restaurant have fruit salad?
Example Output: B

Example Input: F: How may I help you? ,M: I need to buy some clothes for my daughter. I don't know what size to get. Can you help me? ,F: Certainly. How old is she? How tall is she? ,M: She is 9 years old and 4 feet tall. ,F: We have a great selection of clothes for young girls. Pants start at $10 and shirts start at $7.
(A) M: Really? You have a great selection of clothes for young boys and the cheapest shirt is just $10? (B) M: Excuse me, could you repeat the question? (C) M: So, as you mean pants start at $15 and shirts start at $7, the cheapest shirt is just $7? (D) M: Really? The cheapest shirt is just $3? Oh, I need to buy some clothes for my wife.
Example Output: B

Example Input: F: My son just got a job as an engineer at Microsoft after graduating from Harvard University with a BA. He'd originally wanted to study arts. ,M: Congratulations. He is certainly not disappointed you. ,F: Yes, I have always been proud of him.
(A) M: Don't worry, although your son is doing badly in study, I believe he will be much better when he goes to junior high school. (B) M: So even though she wanted to study art, she ended up studying doctor? (C) M: I'm sorry, I don't understand. Could you say it again? (D) M: Did your son have any feelings about teaching at harvard for more than a decade?
Example Output:
C