Definition: 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.
Input: M: Hi Grandma, it's so good to see you again. ,F: Nice to see you Jack. ,M: We haven't seen each other for half a year. ,F: You are much taller now. Here's your gift. ,M: Thanks, grandma. May I open and have a look at it? ,F: Sure, I hope you like it. ,M: A racing car right? Oh, Grandma. You are great. ,F: I'm glad you like it. ,M: Sure. Gramma this way. How is your flight? ,F: Fine. It took me about 5 hours to get here. ,M: That's a long trip, you must be very tired.
(A) F: I shouldn't have taken the bus here, darling. It's exhausting. (B) F: Yes, I feel tired after 13 hours of flight. I need a rest now. (C) F: Not exactly. There weren't many people on the train. (D) F: I’m sorry, I don’t understand. Could you say it again?

D