Round characters are complex. Round characters are often characterized as major characters who changes heart or changes behavior drastically from the conflict. Uncle Marcos' behavior should have developed more profoundly than flat characters who are merely supporting characters and static all throughout the storyline.
hope it helps:)
I would go with d simple and straightforward
Answer:
“The capacity to learn is a gift; the ability to learn is a skill; the willingness to learn is a choice.”