Task: Dialogue Generation
Input (English): F: Let's go to the theater. There's a good play, the Late Comma. ,M: I'd like to. But my uncle is coming to visit us and I've arranged a party for him. He'll celebrate his fiftieth birthday.
(A) F: It will be OK. You're going to have a 50th birthday party for your uncle. May I join you? (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: You will go to the theater with me. How wonderful! (D) F: It will be OK. You're going to have a 60th birthday party for your uncle. May I join you?
Output (English): A