the efforts of one good worker can often motivate others to reach their potential through a process called              a.  productivity.    b.  mentoring.    c.  modeling.    d.  perpetuity.

HI! I would say that the best option is B mentoring.

Explanation:

Well, productivity refers to how much one person is producing, how much work they are doing. But, does not refer to them motivating others. Modeling, is a process that allows you to analayze the buissness process, again not motivating anyone. And lastly, perpetuity. has do with money. So, mentoring which is helping others/ motivating them, would be the best answer.

Hope this helps you!