Komal is reading the following paragraph about Olympic athletes. Becoming an Olympic athlete requires hard work, dedication, and superior athletic ability. Most Olympic athletes make training for the games their full-time job. They spend most of their time either exercising or practicing their sport. Not only must they be dedicated to training, but they must also stick to a strict and healthful diet. Sometimes hard work and dedication are not enough, though. They must be combined with superior athletic ability to result in Olympic gold.

How does the detail about training being a "full-time job" develop the central idea of this paragraph?

A.
It provides an example of dedication.
B.
It tells how to develop superior athletic ability.
C.
It shows the results of dedication and hard work.
D.
It explains how hard work and athletic ability work together.