【单选题】

Man:Can I borrow your maths textbook I lost mine on the bus.

Woman: You’ve 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.