What is the best example of a supporting detail? A .A fact that elaborates on the point of the writing.
B. The use of all four types of sentences in the writing.
C. A variety of sentence lengths throughout the writing.
D. A great clincher sentence at the end of the writing.

Explanation:

One of the most important sources of energy is the sun. The energy of the sun is the original source of most of the energy found on earth. We get solar heat energy from the sun, and sunlight can also be used to produce electricity from solar (photovoltaic) cells.

the answer is not negative reinforcement.