The correct answer is A. Who is a three-dimensional
Step-by-step explanation:
In literature, a round character is a complex character that evolves during the story, behaves in a realistic way and that is described through multiple traits, additionally, round characters can be unpredictable and surprise the reader as events in a story change. Moreover, this type of characters is also called three-dimensional characters because they are compared to real people of three world dimensions as they behave in the same way, have complex personalities and develop. Thus, a round character is a character who is three-dimensional.