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: Lucy, I'm terribly sorry to hear your mother was seriously ill. ,F: Don't worry so much, grampa. She is much better now.
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: Is she still terribly ill? Sad for her. (C) M: After my operation, your mother is better now. Don't worry. (D) M: Good to hear that your mother has turned much better.

Ex Output:
D


Ex Input:
F: Dad, I just finished my paper. Can you help me check it before I handed in? ,M: Sure, let's take a look. Sweetie, this is really good. Your ideas are so original.
(A) F: Thanks. So you think my exam grade is very good. (B) F: Thanks. So you think my paper is very good. (C) F: Thanks. So you think my paper is very bad. (D) F: I didn’t hear you. Please could you tell me again?

Ex Output:
B


Ex Input:
F: It's surprising that Frank comes out of the accident alive. ,M: That's true. His car was a total loss, you know.
(A) F: Now Frank has to buy a new car since this one was lost. (B) F: Yes, both Fank himself and his car were safe and sound after the car accident. (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: Luckily that Frank didn't hurt seriously after falling out from the car.

Ex Output:

C