【单选题】

Man: I'm still waiting for my sister to come back and type the application letter for me.Woman: Why bother her I'll show you how to use the computer. It's quite easy.Question: What does the woman mean
A．She'll type the letter for the man.

B．She'll teach the man to operate the computer.
C．She doesn't think his sister is a good typist.
D．She thinks the man should buy a computer.