Answer:
a. intrinsically
Explanation:
Intrinsic motivation: In psychology, the term intrinsic motivation is described as an individual's ability to perform any behavior or action because he or she enjoys doing the work or activity. An individual gets inspiration for behaving or acting in a certain way due to the inner aspiration of doing it.
The behavior that has been involved in intrinsic motivation occurs due to internal rewards because it satisfies the person's inner instincts.
In the question above, Sam is likely to be intrinsically motivated.
