Read the following conversation and answer the question.

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.

Question: According to the woman, what shall the man do first? 

- Read the operation manual.

- Try the buttons one by one.

- Ask the shop assistant for advice.


Read the operation manual.