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: Where are you going, Les? ,M: To the pet shop. I want to buy some cat food for Grace's birthday. She loves her cats and I'm sure she'd like to get some cat food. ,F: But it's Grace's birthday, not her cats'. She enjoys reading. Let's get her a book. ,M: OK. Let's go to the book shop then. ,F: I prefer shopping online. It's easier.
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: Really? You don't prefer shopping online although you think it's easy? (C) M: Really? You think shopping online is easy? Can we buy books online as well? (D) M: OK. Let's get her a pen and we can buy it online as you think shopping online is interesting.
Example Output: C

Example Input: M: Can I help you Madam? ,F: Yes, thank you. I seem to have lost my room key. ,M: Take it easy. You can go to the front desk to get the spare one.
(A) F: Thank you. I'll go to the front desk and get the spare key right now. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: Okay, I won't leave the office until you give me the spare car keys. (D) F: Thank you so much for helping me check in.
Example Output: A

Example Input: M: Do you know the programs for tonight? ,F: Yes, TV programs for tonight. 1900 English learning for children, 2025 science and health, 2130 star sports, women's football match.
(A) M: Let's watch the 20:25 football match. (B) M: We have a football match tonight at 21:30. But it's men's match. (C) M: The football match begins at 21:30, so we can have dinner first. (D) M: Excuse me, could you repeat the question?
Example Output:
C