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: I see you are busy now, Kate. Once you finish, I'd like to have a talk with you. ,F: Alright, come in please.
(A) M: I have time to help you with work. (B) M: I’m sorry, I don’t understand. Could you say it again? (C) M: I can see that you are not busy, so I want to have a talk with you. (D) M: I would like to have a talk with you.

Ex Output:
D


Ex Input:
M: Good afternoon, madam. How can I help you? ,F: Well, I am a little bit out of shape. I think I should get some exercise to keep fit. What kind of service do you offer? ,M: First of all, we'll work out a plan according to your physical conditions and your personal needs. ,F: How can you get that done? ,M: Well, we give each of our customers a qualified personal trainer. The trainer will give you a fitness assessment and then come up with a plan. ,F: What else?
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: No worry. We have no trainer here, so I'll come up with a plan for you. (C) M: You'll get a plan from your trainer. Then we give you a fitness assessment. (D) M: Nothing else. A qualified trainer will take full charge of making your plan.

Ex Output:
D


Ex Input:
F: What are you doing on Friday? ,M: I have to go to the supermarket. I need to get a bunch of groceries for our camping trip this weekend. ,F: Oh, that's right, you're going camping, it had slipped my mind.
(A) M: Yeah, would you like to go shopping some groceries together? (B) M: Are you also going shopping this weekend? (C) M: Are you going camping with us together this Friday? (D) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please?

Ex Output:

A