Read the following conversation and answer the question.

W: What is that sound? I can hear something coming from the back of the car. Can you hear it?

M: Yeah, I can. Pull over by this gas station up ahead. I think I know what the problem is. I need new tires, anyway.

Question: Why does the man ask the woman to stop the car? 

- They have engine trouble.

- They need some gas.

- They have a flat tire.


They have engine trouble.