Q: 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".
W: I think the last question is very difficult. M: Lot's go and ask Mr. Green.
A:
Who are they going to ask about the question? (A) Their teacher. (B) Their father. (C) Mr. Green.