Consider the question. What contains most of the energy used by people worldwided?
Options:
- (A) heat
- (B) Light
- (C) coal
- (D) grasses
- (E) Cooking
- (F) glucose
- (G) A computer
- (H) gasoline
 If the answer is '(D)'; explain the reasoning:
user
Grasses supply most of the food consumed by people worldwide. Because food contains energy. Grasses supply most of the energy used by people worldwide.
assistant