Final answer:
In the context of corrective exercise sessions, setting small, attainable goals notably contributes to building a client's sense of competence, which is their confidence in their abilities to complete tasks and plays a critical role in both motivation and successful long-term behavior change. Option C.
Step-by-step explanation:
Setting small, attainable goals in a corrective exercise session is pivotal for building a client's competence. Competence is a sense of self-efficacy, referring to the confidence in one's own abilities to achieve tasks.
According to self-determination theory, as noted by Niemiec and Ryan (2009), competence is one of the three basic psychological needs along with autonomy and relatedness.
This is essential because, as per Erikson's theory of psychosocial development, mastering tasks in adolescence leads to developing a sense of competence, which further contributes to a healthy personality.
Tackling and achieving these smaller goals also enhances the individual's motivation to pursue and accomplish larger goals. The sense of competence thus developed is critical for ongoing success in their exercise and overall health journey.
So Option C is the correct answer.