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: Did your teacher give a task for Monday? ,F: There is nothing to read in the textbook, but we have to see a movie and write a short report about it.
(A) M: Let's continue talking about the task. (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: Now that your teacher didn't give you any task for Monday, why should we continue to talk about this task? (D) M: You need to write a long paper about the movie? That's terrible.

Ex Output:
A


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: National Bank, can I help you? ,M: Yes please. What are your business hours? ,F: We open at 9:00 and close at 4:00 during the week. On Saturday we close one hour earlier at 3:00 and we are closed on Sunday.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: OK, thank you. You close at 3pm on Saturday and all day on Sunday and Monday. Is that right? (C) M: OK, thank you. You close at 3 p.m. on Saturday, don't you? (D) M: You mean it closes an hour later than usual on Saturday and doesn't open until 4pm?

Ex Output:

C