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: Have you received a chapter 16 of supermarket killers yet? I think there's something wrong with my phone. ,F: Nobody has received it yet. I really want to know what happens, the suspense is killing me. ,M: Exactly. You know, I think 20 Chapters is too short. I hope his next story is 30 chapters long.
(A) F: I agree with you. I also think 20 Chapters is too long. Let's talk more about this story. (B) F: Yeah, I agree with you. Let's talk more about this story. (C) F: I am really sorry, I did not catch that. Would you slow down, please? (D) F: Yeah, I really don't want to know what happens. Let's talk more about this movie.
Example Output: B

Example Input: M: I would like to make a hotel reservation. ,F: What day will you arrive? ,M: I will arrive on May fourteenth. ,F: How long will you stay? ,M: I need the room for 3 nights.
(A) F: So, you are gonna leave Shanghai on May 14th. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: On May 16th, you will go to the United States, right? (D) F: Sir, you can check in our hotel on May 17th.
Example Output: B

Example Input: F: Dad we can sit on the grass for our picnic. ,M: It's too wet, how about on that rock by the tree? ,F: Yeah, Ok, but can we go in the boat before we have the picnic? ,M: Come on, then.
(A) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) F: We can have our picnic on the rock by the river. (C) F: We can have our picnic on the rock by the tree. (D) F: We can have our picnic on the boat as your wish.
Example Output:
C