A Round characters are one-dimensional, often with a single character trait, while flat characters are more believable because they have a fuller personality with multiple character traits.
B Flat characters are physically flat, while round characters are physically round.
C Flat characters are major characters, while round characters are minor characters.
D Flat characters are one-dimensional, often with a single character trait, while round characters are more believable because they have a fuller personality with multiple character traits.