AP English Literatur

The correct answer is: B.Flat character.

Explanation:

A.Protagonist: The protagonist is the main character in a story, and readers usually get to know them quite well, as they are central to the plot and typically undergo development.

B.Flat character: A flat character is one-dimensional and lacks complexity or depth. The reader doesn't learn much about them, and they typically don’t undergo significant development throughout the story. They may have one or two key traits but are not deeply explored.