Carlos is using the following images of a coal plant and a barbecue for his science investigation about chemical energy. Based on his observations, which statement most likely describes the conclusion of his investigation? A:The images show examples of chemical energy being converted into heat and electrical energy.

B:The images show examples of mechanical energy being converted to heat energy.
C:The power plant and the barbecue convert electrical energy into chemical energy.

D:The power plant and the barbecue store heat energy and convert it to chemical and electrical energy.