Context: Albert is deciding whether to buy a copy of a book or borrow it from the library. He would like to be able to keep the book as long as he wants, but buying the book would cost money. He could borrow the book for free, but he would have to return it in a few weeks.
Suppose Albert decides to borrow the book from the library. Which result would be a cost?
A. Albert will give up the chance to keep the book as long as he wants.
B. Albert will save some money by not buying the book.
From the given choices, choose the correct answer and respond with the letter of that choice.

A