What motivates a character's action?

Character motivation

EXPLANATION: the reason behind a character's behaviors and actions in a given scene or throughout a story. Motivations are intrinsic needs: they might be external needs and relate to survival, but they might also be psychological or existential needs, such as love or professional achievement.

(i can't select because there is no options but, i will answer) using evidence effectively. most of the assignments you will do in university will ask you to make an argument, to take a stance, or to prove a hypothesis. the best way to do this is to research the topic, develop a thesis statement, hypothesis, or claim and then use evidence to support this claim.

appeal to ethos is your answer.