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: Hi, Mary, how are you doing? ,F: Fine. What happened to you yesterday? I didn't see you in class. ,M: Oh, I overslept as usual, what went on anyway? ,F: Mister Smith wants to see you in his office.
(A) M: I know, mom. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: Don't forget we have a meeting about our project. (D) M: Did you help me hand in the homework?

Ex Output:
D


Ex Input:
M: You know, my car hasn't been the same since I bumped into that telephone box. ,F: You'd better have that looked into before you drive to Florida.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: You are right, I should probably buy a new car. (C) M: I agree with you. I really need to make some time to get my car checked. (D) M: I agree. You really should get your car checked.

Ex Output:
C


Ex Input:
M: Jane, you are a teacher and how about your sister? ,F: She is a doctor, but she used to be a nurse.
(A) M: Oh, your sister is a teacher. (B) M: Oh, your are a doctor. (C) M: Oh, your sister is a doctor. (D) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that?

Ex Output:

C