【单选题】

Man: Can I borrow your Maths textbooks I lost mine on the bus.
Woman: You have asked the right person. I happen to have an extra copy.
Question: What does the woman mean
A．She can find the right person to help the man.

B．She can help the man out.
C．She's also in need of a textbook.
D．She picked up the book from the bus floor.