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: This machine has so many buttons. I can't figure out which one makes it run. W: You'd better read the instructions first. Pressing the buttons randomly may cause the machine to break down.
According to the woman, what shall the man do first? (A) Read the operation manual. (B) Try the buttons one by one. (C) Ask the shop assistant for advice.