The correct response is: A reader might know things that the characters do not.
This perspective creates suspense because the reader may be aware of impending danger or consequences that the characters are oblivious to, leading to tension as they anticipate how the characters will react when they eventually find out. It can also create humor, especially in situations where the reader understands a situation's absurdity while the characters remain unaware, leading to comedic misunderstandings or situations.