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: How do you learn that? Is that something that your mother would teach you? ,F: There is some classes for both flower arrangement and tea ceremony. So you need to go to a school, yes, and learn from your teacher.
(A) M: Your school life would be boring because school does not offer any art courses. (B) M: It's no wonder you don't know any kinds of art, because there is no art courses in school. (C) M: Excuse me, could you repeat the question? (D) M: Great! I also wanna go to school to learn some kinds of art.

Ex Output:
D


Ex Input:
F: Hi, Rob. Do you mind if I eat lunch with you? ,M: No, Mrs. Evans, not at all. ,F: Thanks. I've just heard you study nutrition and you've got quite a lot of experience working in the cafeteria, so I wonder if you are interested in a small project we're doing this term. ,M: What is the project about? ,F: More and more students prefer not to buy meals here and we want to attract them back. I want to know what the students would like to eat. Your job will be finding this out. Of course, I also like to hear any of your ideas. ,M: Well, if the menus were changed, maybe I wouldn't have to listen to so much criticism this term. You know, everyone in the nutrition class sees me when I serve food here, so they always complain to me about the food here.
(A) F: Excuse me, could you repeat the question? (B) F: Now that your job is cooking food for the students, you can ask them what they like to eat. (C) F: As more and more students prefer to buy meals here, you must very busy everyday when serving food for the students. (D) F: Then you should tell them that you have improved meals' nutritional value, it's your job to tell them.

Ex Output:
A


Ex Input:
F: Why don't you try to touch the spider? ,M: Forget it. It's the last thing I will do.
(A) F: I am really sorry, I did not catch that. Would you slow down, please? (B) F: I see what you mean. You're afraid to touch the spider, aren't you? (C) F: You mean that while touching a spider is your favorite thing to do, you're going try to touch it later? (D) F: Even though you have touched a spider before, you're still afraid of touching the spider, right?

Ex Output:

B