Concept:A dynamic character is a literary character who undergoes noticeable change during the story.
Explanation:The dynamic character develops as the plot events and actions unfold.
Such a character is usually well-developed and complex.
In literature, a round character is the one commonly described as dynamic.
A flat character does not change, while a protagonist may or may not be dynamic.
A foil only serves to contrast another character.
Therefore, the blank is correctly filled by “round character.”
Answer:B. Round character