Final answer:
D) A personal feeling of accomplishment. An example of an intrinsic motivational factor is a personal feeling of accomplishment. This type of motivation is driven by internal satisfaction rather than external rewards, which are the main source of extrinsic motivation.
Step-by-step explanation:
An example of an intrinsic motivational factor is D) A personal feeling of accomplishment. Intrinsic motivation refers to the act of doing something without the need for external reward or recognition. Such motivation comes from within the individual as a result of personal satisfaction or the pleasure derived from the activity itself.
Extrinsic motivation, on the other hand, arises from outside of the individual, and includes things like money, praise, or rewards. The motivation Carl experiences for mowing the yard when he gets paid $20 is an example of extrinsic motivation, as it is motivation that comes from an external reward. On the contrary, if Odessa bakes in her free time because it brings her joy, that is intrinsic motivation, which can be undermined by extrinsic rewards such as money if those become the primary reason for the activity.
Additionally, self-efficacy and the belief in one's own ability to complete a task successfully is a powerful intrinsic motivator that can encourage individuals to take on challenges and persist in the face of difficulties.