The correct answer is D. To distinguish "good" characters form "bad" characters.
Explanation
A stereotype is a word used to refer to the thought or conception that society or a social group has about some object, situation, personality, among others. When writers use the stereotype in literature they do so to get closer to the reader to allow them to create a mental image of the character's personality. For example, if a writer refers to a teacher, the stereotype that can accompany him is that he is a studious, investigative, collaborative, friendly person, among others; if, on the contrary, the writer refers to a rock singer, his stereotype is a spontaneous, partying, womanizing, uncontrolled, and rebellious person. These stereotypes are also used to change the image of said characters who attend a certain stereotype, for example, a teacher is usually friendly, however, the writer can give him the character of grumpy and scolding or can change the stereotype of a rockstar from disorganized to a responsible and orderly person. According to the above, it can be affirmed that the stereotypes in literature are not used to give a value judgment to distinguish the "good" and "bad" characters. So, the correct answer is D.
