Final answer:
A round character is most associated with internal conflict.
Step-by-step explanation:
The type of character most associated with internal conflict is a round character. A round character is one who is well-developed and exhibits complexity, including having conflicting desires, goals, or emotions. By contrast, flat characters have one-dimensional personalities and do not experience significant internal conflict. While a foil character may contrast with another character and highlight their traits, they may or may not experience internal conflict. Lastly, a static character does not undergo significant change or internal conflict throughout the story.
Learn more about character types and internal conflict