PLEASE HELPPP :[ When a chemical change occurs a new substance is created. Harvey put hamburgers on his barbecue, and they cooked. He left fruit out on the counter and they started to rot.

What evidence about chemical changes can Harvey use to support the examples in his experiment?

A. The chemical changes occurred because the chemicals changed.
B. The chemical changes occurred because there was a change in light energy.
C. The fruit and the hamburgers were affected by an increase in heat energy.
D. The fruit and the hamburgers were affected by a decrease in heat energy.