Dialogue:

M: Hey, Louise, I've got a used copy of our chemistry textbook for half price.

W: I'm afraid you wasted your money, yours is the first edition, but we're supposed to be using the third edition.

Question: What has the man done? 

- He has edited three books.

- He has bought the wrong book.

- He has lost half of his money.


He has bought the wrong book.