How can the readers point of view create suspense and humor?

A) a reader might have prior knowledge about certain historical content
B) a reader might know things the characters do not
C) a reader, might know the ending of the story
D) a reader, might have a preference for one particular character

B) a reader might know things the characters do not

This can create suspense as the reader waits to see how the characters will react or whether they will make decisions based on the information they are unaware of. It can also create humor as the reader sees the characters bumble along unaware of the full picture.