You will be given a definition of a task first, then some input of the task.
In this task, you will be shown a conversation. You need to write a question with three choices for the conversation. Your question should be answerable based on the conversation and only have one correct answer. Note that you don't need to answer your question. "W" and "M" in the conversations stand for "woman" and "man".

M: Hey, is your sister coming to dinner tonight? W: No, she isn't. She has to work late on Fridays. M: Well, did you invite our neighbor Don? W: Nope. He's out of town this week. M: So does that mean it's just us for dinner? W: Yeah. Is that a problem? M: No... It's just that we always have dinner together. I was hoping that we could have some company for once. W: Well, I'm sorry to let you down. But I did make pizza, so I hope you can at least appreciate that.
Output:
Why won't the woman's sister come to dinner? (A) She has to work late. (B) She has an appointment. (C) She's in another town.