Answer:
intrinsic
Step-by-step explanation:
Intrinsic motivation: In psychology, the term intrinsic motivation is referred to as the phenomenon that involves different behavior of an individual that is being driven through internal rewards.
In other words, intrinsic motivation refers to the process through which an individual is being involved in activities or behavior that comes from inside the person because that behavior or activity satisfies the person internally and naturally.
In the question above, Rick's motivation is best described as being intrinsic.