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: Here are your cold dishes, sir. ,M: Thank you. I wonder why it Chinese dinner always starts with cold dishes instead of hot courses. Could you explain that to me? ,F: Certainly, sir. It's a custom in our country to serve cold dishes first as they have been prepared before hand. ,M: Oh, I see. The chefs in your country are just in the habit of preparing cold dishes first. ,F: I'm afraid that's not exactly right, sir. Chinese people usually regard the dinner party as an occasion for a friendly chat. ,M: Yes, I quite agree. But what does that have to do with serving cold dishes first? ,F: Well, people usually talk more and eat less at the beginning of the dinner. Therefore, if hot courses were served they would get cold very quickly. ,M: I see, but the problem is that I'm already full when it comes to the wonderful hot courses. And I often miss the chances to enjoy many Chinese dishes.
(A) F: Excuse me, could you repeat the question? (B) F: It's just a habit of Chinese chefs. (C) F: Hot dishes would get cold during the chat. (D) F: Hot dishes would get cold during the chat, so people chat less at the beginning of the dinner.
Example Output: C

Example Input: F: Besides the medicine you gave me, do you think I should have some chicken soup? ,M: I'm afraid it can only make your stomachache worse.
(A) F: I will buy a bag of chicken soup then. Where is the cashier of the department store? (B) F: I will order one chicken soup then. Your soup is always so delicious. (C) F: I am really sorry, I did not catch that. Would you slow down, please? (D) F: Ok doctor, I will have some chicken soup and medicine then.
Example Output: C

Example Input: F: Hi Jim, I haven't seen you for several days. Have you moved into your new house already? ,M: Yes, and I'm so excited about it. ,F: Why are you so excited? ,M: I used to live in a small cold room all the year round, but now things have completely changed.
(A) F: You have got married. (B) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) F: Why are you sad when you move into the new house? Don't you miss the old house? (D) F: You small cold house has been sold. Who buys it?
Example Output:
B