Task: Dialogue Generation
Input (English): M: Are you ready for the trip to the Big Apple? ,F: The Big Apple? What are you referring to? ,M: Don't you know? The Big Apple? Is the nickname for New York City. You're going to New York with us, aren't you? ,F: Yes, I'm going. I'm really looking forward to seeing an exhibition of a modern American painter there, but I'm wondering where the nickname came from. ,M: Some musicians in the nineteen twenties gave it the name when they played a concert in New York. The musicians called it the Big Apple.
(A) F:  I still not get why the musicians gave the nikename to New York. What's the connection? (B) F: I didn’t hear you. Please could you tell me again? (C) F: Why? I didn't see any connections between L.A. and  a big apple. (D) F: Yeah, people live there know the city most, they call it the Big Pear.
Output (English): A