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: I know you pay a lot of attention to exercise in your daily life. Could you tell me something about exercise? ,M: OK. I'm just interested in exercise. The importance of exercise is nothing new. Thomas Jefferson once wrote that to be successful and academic studies, a person should give about 2 hours everyday to exercise. ,F: 2 hours every day? I can't do that. ,M: Most experts today do not demand 2 hours of daily exercise. They recommend that people get 60 minutes of moderate to vigorous physical activity most days of the week.
(A) F: Well, I see, jogging for 2 hours everyday is pretty challenging, but I'll have a try. (B) F: Well, I don't think doing exercise for 1.5 hours every Monday is tough. (C) F: Okay, reading for 1 hour everyday is not hard, I think I can do that. (D) F: Excuse me, could you repeat the question?
Example Output: D

Example Input: F: What kind of music do you like listening to? ,M: I like music that has a fast beat and it's lively, like dance music which is sometimes too loud, though. You prefer classical music, don't you? ,F: Yes, I do. I find it very relaxing. I often listen to Mozart or bach in the evening after a hard day at work. ,M: I must admit that I like several pieces of classical music. ,F: Classical music is supposed to be good for your brain, research suggests that it makes your brain more active, students who listen to classical music while studying perform better. ,M: Really? Perhaps I should listen to classical music often. I heard that listening to classical music is helpful in reducing stress. ,F: Yes, that's why I listen to it in the evenings. I usually play it as background music while I'm cooking or doing other housework. But in the early morning when I get up, I prefer to listen to folk music which is more traditional.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: It' s so nice to listen to folk music which is less traditional in the early morning. (C) M: That sounds great! In early morning, to listen to folk music. What an easy life! (D) M: That' s good to listen to folk music in the evenings. Thanks for your advice, uncle Joe!
Example Output: C

Example Input: F: James, have you heard of a gap year? ,M: No, what's that? ,F: It's when you take a year off between finishing high school and going to college. It's popular in the UK. ,M: Hmm...What do people do for that year? Work? ,F: Some people do, other people volunteer. But mostly, it's for traveling and taking it easy for a little while. ,M: Do you like that idea?
(A) F: After the second year of college, there will be a gap year. I really like this idea and enjoy my traveling at that period. (B) F: Yes. Before the first year of college, student will take a year off for traveling. And after this period, students will turn to the gap year. (C) F: Excuse me, could you repeat the question? (D) F: Yes, I do. Before the first year of college is a gap year and I will travel for a little while at this period.
Example Output:
D