Answer:
C. Individual performance
Explanation:
Individual performance in an organization is a combination of ability or skill, that comes from education, and also from past experience (efort level expended).
Organizational support is also important for individual performance. A firm can either exploit a person's weaknesses or strenghten the person's ability by providing continuous training and instructions, feedback, and support.
It is important for a firm to support their workers constantly, because the higher the individual performance of each worker, the better (and more profitable) it is for the firm.