Answer:
C. a character's reasons for acting
Step-by-step explanation:
The motivation of a character refers to the motives that are behind the behaviors that he/she adopt. It is what stimulates a specific action in order to accomplish something and there is an intrinsic motivation that relates to personal interests, wellbeing or knowledge and there is an external motivation that relates to things like power or money. According to this, the choice that best defines the motivation of a character is a character's reasons for acting.