Answer:
The answer is C. Extrinsic motivation.
Step-by-step explanation:
Extrinsic motivation refers to a stimulus that drives a person to do something and which is external to him or her, it comes from the outside. With an external motivator, the person does something in order to have a reward or to avoid a punishment, actions and behaviors are not done for the satisfaction they alone can bring, but for the consequence of doing them whether it is positive or negative.
In this case, John's motivation to work harder on his Social Studies project is to get a good grade and be eligible for a special scholarship for college, his motivation is extrinsic.