Answer: The correct answer is : proofread the entire paper
Explanation: If you are going to staple, you should check: the number of pages that do not exceed the maximum allowed, size and type of paper that can be stapled. If you are going to bind, you should also make some previous revisions such as: see that the spine does not exceed the maximum thickness allowed, check the size of the book block and the type of paper in the book block.