Answer:
d. motives
Step-by-step explanation:
This question is incomplete. The options for this question are:
a. optimal level of arousal
b. persistence
c. intensity
d. motives
In psychology, the term motive refers to an state of arousal that influences in the way we behave. In other words, it is something that has influence in our decisions because we consider it as important.
In this example, Stella studies for her exam so she can maintain her scholarship. On the other hand Dorothy studies for the exam so that her parents leave her alone. We can see that the scholarship is something that Stella considers important while Dorothy considers important that her parents leave her alone. This reasons are influencing their behavior, and while they both are studying, they differ in their motives.