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: Can I have my bill, please? ,F: Yes, one moment, please. ,M: Do you take credit cards? ,F: Sorry, we don't accept checks, either. You have to pay in cash.
(A) M: OK. I'll pay by credit card. (B) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) M: Fine. I will pay by cash. (D) M: You don't accept cash? How about credit card?
Example Output: C

Example Input: M: I just love badminton. What's your favorite sport? ,F: Um...It's hard to say. I like baseball a lot, but I think I like volleyball best.
(A) M: Me, too! I'm crazy about baseball. (B) M: I'm so glad that your favorite sport is badminton. (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: You love baseball most, although you're interested in volleyball.
Example Output: C

Example Input: F: This is Rose. I got a message saying you called this morning. ,M: Hi, Rose, thanks for calling back so soon. I called you to check if our order has been shipped.
(A) F: I'm surprised that you want to know the amount of the goods instead of shipping. (B) F: I'm surprised that you want to know the way of transportation instead of shipping. (C) F: I didn’t hear you. Please could you tell me again? (D) F: Yes, sure. It was shipped yesterday.
Example Output:
D