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:
F: I'm sorry, but I really must go now as it's getting dark. Thank you very much for the delicious meal. ,M: I'm glad you enjoy it. Thank you for coming. Please drop in when you have time.
(A) F: Thanks for your meal. It was delicious. (B) F: Sure. I am glad that you had a good time in our home. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Let's go home now. The restaurant is not so well.

Ex Output:
A


Ex Input:
F: Hello Martin, long time no see. I heard you went to France to study, how was that? ,M: I was only there for a year, then I took a year off to travel around Europe. ,F: Where did you go? ,M: I went to Switzerland first and then Germany in Austria. I was planning to end my trip in Italy, but it didn't work out. ,F: Oh well, is it good to be back? ,M: Of course, but I'm returning to France to finish my degree. It's a four-year program.
(A) F: Really? You are returning to Italy to finish your degree and you need two years for your degree? (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: So, you mean it's a four-year program and now you need three years for this degree? (D) F: Really? You are not returning to France to finish you degree? Oh, you need four years for this degree!

Ex Output:
C


Ex Input:
F: I'd like to watch the news. The Oscars were last night and I want to see the results. ,M: I won't ruin your enjoyment by telling you who won. There were a few surprises.
(A) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) F: You have known the results of the math exam. (C) F: You will tell me the results. (D) F: Why you think the results will make me unhappy?

Ex Output:

A