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: Good afternoon, sir. Can I help you? ,M: Yes, we need a room for the night. Have you got any rooms available? ,F: Yes. What do you like a single room or a double room? ,M: A double room. ,F: How many nights would you like to stay? ,M: We're only staying overnight. We'll check out tomorrow morning.How much is it? ,F: It's $68 per night.
(A) M: As I'll stay for two nights, it's $136 in total. (B) M: Then I need to pay $68 for the single room. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: So, $204 a night for my single room. Alright.
Example Output: C

Example Input: F: Dear audience, tonight we have Stephan Darcy with us in the studio. Congratulations on your book Life And Everything In Between Steven hit such a success. ,M: Thank you. ,F: This is your first attempt at poetry. Did you ever try it before? Did you take any classes in poetry? ,M: Well, my only real experience was writing business plans. I've always had a good grasp of the English language, my mom encouraged me to read when I was very little. ,F: What's the hardest thing about creating your work? ,M: Finding the perfect words to fit what I wanted to say, there's always a word or 2 that I might still rewrite if given the chance.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: You' re right Mr. Bob! I agree with you that the most difficult in writing is choosing right words. (C) F: Describing experiences is the most difficult in writing. Miss. Sue' s opinion is really special! (D) F: You think the most difficult in writing is choosing right words? Why do you say so?
Example Output: D

Example Input: F: Cambridge Theatre box office. ,M: Have you got any tickets left for Romeo and Juliet for this Saturday. ,F: Which performance? 5:00 PM or 8:30 PM? ,M: 8:30 PM, please. ,F: We have tickets at 5 pounds, 6 pounds and 8 pounds. ,M: I'd like to reserve 2 seats at 6 pounds each, please.
(A) F: OK, sir. You are going to pay 6 pounds for your tickets for Macbeth. (B) F: Two tickets and 6 pounds for each. The tickets are 12 pounds in total. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: The tickets are 16 pounds. The show will begin at 6:00 PM this Friday.
Example Output:
B