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.

Ex Input:
M: I have read Mark Twain's book, The Adventures of Tom Sawyer. It's quite interesting and adventurous. ,F: But this book I'm reading is kind of boring. It only tells you some facts about Mark Twain. ,M: Oh, tell me something about Mark Twain, please. ,F: Well, when Mark Twain was 4, his family moved to Hannibal, a port town on the Mississippi River that gave him the idea for writing the book, The Adventures of Tom Sawyer. ,M: Oh, really? Anything else? ,F: In eighteen fourty-seven, when Twain was 11 years old, his father died. The next year, he began to learn printing. When he was 18, he worked as a printer in New York City. ,M: What happened next? ,F: Then on a voyage to New Orleans, the steamboat pilot, Horace, inspired Twain to become a pilot. And Mark Twain really received his steamboat pilot license in eighteen fifty-nine, after 2 years of hard work.
(A) M: So, on the voyage to New Orleans, Mark Twain wanted to be a pilot but Hannibal gave Mark Twain the idea to write a book? (B) M: So, New Orleans gave Mark Twain the idea to write a book but when he was 18, he still worked as a printer in London? (C) M: So, as Mark Twain never received his steamboat pilot license, he finally became a writer and Hannibal gave him the idea to write a book? (D) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that?

Ex Output:
A


Ex Input:
F: Where did you get this calendar, Ricky? It covers your whole desk. ,M: I ordered it online. I'm sure if you ask Mr. Dennison in the finance department, he'll order one for you, too.
(A) F: What size skirt do you want, miss? (B) F: I went through the formalities this morning and we are no longer colleagues. Good luck. (C) F: I didn’t hear you. Please could you tell me again? (D) F: Oh, thank you for telling me that. I'll call him right now.

Ex Output:
D


Ex Input:
F: To start with, tell me about your education please. ,M: Alright. I shall graduate from Columbia University of foreign studies next year. I major in international trade. ,F: Are you single or married? ,M: I'm still single. I'd rather secure mycareer before settling down in a family. ,F: That's the kind of man we're looking for. Our promotion work needs much travel so do you mind many business trips? There will be 6 to 10 times traveling abroad a month. ,M: 6 to 10? Oh, that is indeed. ,F: OK. So I would say this work is indeed demanding. ,M: Err, I think it will be a challenge for me, but I am glad to take it. ,F: It has been pleasant talking with you. We'll notify you of our final decision within one week.
(A) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) M: OK. I will have another interview in your company now and wait for your decision. (C) M: Thanks. I am waiting for the reply to tell me when I can have the interview. (D) M: Thanks. Since you have hired me, I am thinking about my business trip.

Ex Output:

A