Which of the following is an example of extrinsic motivation?

Extrinsic motivation refers to engaging in a behavior or activity to achieve a separable outcome, such as a reward or recognition that comes from outside the individual rather than from internal satisfaction or interest. In this case, studying to earn a good grade exemplifies extrinsic motivation since the individual is motivated by the desire to achieve a specific outcome (the good grade) rather than the inherent enjoyment of studying itself.

When looking at the other options, reading a book for enjoyment, participating in a hobby out of personal interest, and engaging in sports for fun all highlight behaviors driven by intrinsic motivation. In these cases, the motivation stems from the personal satisfaction and pleasure derived from the activity itself, not from external rewards or recognition. Therefore, the choice centered around studying to earn a good grade clearly identifies an extrinsic motivator reflected in the desire for an external accolade.