The character type that does not fit Creon’s character is stock. Option B is correct.
A stock character refers to a stereotypical fictional character in a artistic work including a novel, play, film, or a movie whom audiences recognize from frequent recurrences in a especial literary tradition. Stock characters are archetypal characters distinguished by their flatness.
In a drama or fiction, a stock character represents a type and is recognizable as belonging to a certain genre.