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.

Example Input: F: Jack, what is your favorite subject? ,M: My favorite subject? Well, I think I prefer science. Yes, science, I find it very interesting. The science teacher makes the subject very exciting. What about you? ,F: I always do very well in the maths tests. I also like geography. I like learning about people and the places where they live. Are there any subjects that you don't like Jack?
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: Your maths is really good, but I'm glad you don't like geography as much as I do. (C) M: Well, to be honest I don't like maths very much, I hope that my maths could be good as yours. (D) M: You really had a good performance in physics, but I'm glad that your performance in maths test is as bad as mine.
Example Output: C

Example Input: F: I think spring is finally here. ,M: Yep, it sure seems like it. However, it's still very cold at night. ,F: Yes, they turned the heat off 6 days ago. It's absolutely freezing in my apartment at night. I have to turn on the air conditioner to blow hot air in order to warm things up a little. ,M: Well, and if you are outside and is a bit of a breeze. It feels cold quickly. ,F: It sure does. I think I'm going to follow my cats example and just sit in the sum that shining in through the windows.
(A) M: I'm glad to talk about the environment with you. (B) M: I'm glad to talk about this apartment with you. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: I'm glad to talk about the weather with your mother.
Example Output: C

Example Input: M: I have found that Chinese people really enjoy drinking tea. ,F: Yeah, tea is an important part of Chinese culture. ,M: I know there are many kinds of tea, such as Longjing Tea, Biluochun Tea and Oolong Tea. ,F: Yeah, Qimen Black Tea, Huangshan Maofeng Tea, and Jasmine Tea are also very famous. ,M: How are they different from each other? ,F: They taste different, because they're made differently. Black tea is heavy but green tea is light.
(A) M: Why do you think black tea is sweet? (B) M: I share the same idea with you, the black tea is heavy. (C) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) M: Why do you think that the black tea is light?
Example Output:
B