Read the following conversation and answer the question.

W: It's ten o'clock. I'm going to have to be leaving.

M: Leaving? Already?

W: Yes. I've got to get up early tomorrow.

M: Ok. Stop over again sometime.

Question: Why did the man have to be leaving? 

- Because he had to go home.

- Because he had to get up early.

- Because he was tire


Because he had to get up early.