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: Wow, I didn't know you were such a great cook. These fake potatoes are to die for. ,M: I've been taking cooking lessons, and you haven't seen anything yet. You're going to love the main course.
(A) F: I'm not surprised that the baked potatoes are your best dish. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: I can see that. I'm sure the next dish is going to be really special. (D) F: I'm not surprised that you will be making something even better next time, those fake potatoes are awful.
Example Output: C

Example Input: M: Call your mom and tell her that we will be home later than expected. ,F: Um, we are in the tunnel now and the mobile phones' signals are dead.
(A) M: How do you know that your mom is in the area with poor signal reception? We are not in the tunnel now. (B) M: Can't you make a phone to your mom now, telling her that we will be home earlier? (C) M: Excuse me, could you repeat the question? (D) M: Do you think we should tell mom that someone is dead, even though the mobile phones' signals are good?
Example Output: C

Example Input: F: I'm terribly sorry, but you'll flight has been canceled. ,M: What? In that case I hope you will put me up somewhere tonight.
(A) F: Sorry, madam, I can't arrange you any accommodation. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: The reason the trains were cancelled was because of the strike. (D) F: Ma 'am, as long as you're not carrying anything dangerous, you can take another flight tonight
Example Output:
B