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: Ma'am! You forgot your phone. ,F: Oh, thanks. I couldn't live without this little thing. ,M: I know what you mean. It is of great significance to you. So, did you enjoy your dinner?
(A) F: Oh, yes. It's strange. I never forget my phone anywhere. (B) F: Oh, yes, I want to thank you again. The phone is extremely important to me. (C) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (D) F: Oh, yes. I really enjoy the service with my phone.

Ex Output:
B


Ex Input:
F: You look tired. Didn't you get enough sleep last night? ,M: No, I had a bunch of friends over and we partied until midnight. ,F: No wonder you look so bad. ,M: I guess I just can't take late nights like I used to. My head is spinning. ,F: I think you need to go home and take a rest. ,M: I wish I could, but I don't think I can keep my eyes open long enough to drive home. ,F: Don't worry. I'll give you a ride home.
(A) M: Thank you for driving me home. I will not take late night any more. (B) M: We did have lots of fun together last night, let's have a rest now. (C) M: You can go home. I'll stay working for a while since my head is clear. (D) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please?

Ex Output:
A


Ex Input:
M: Could you tell me the best way to get to Shanghai Grand Theater? ,F: Yes, you can go there by subway Line 1or 2. You can also take bus No.952.
(A) M: OK. Then I'll take bus No. 952 to Shanghai Grand Theater. (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: Bus No.952 is the only way to get to the Grand Theater. (D) M: Oh, it's bus No. 925 that goes to the Theatre.

Ex Output:

A