Describe the experiences that george to resist pressure to participate negative activities when he was young

Newspaper started by john campbell:

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.

What primary role of regulatory agencies is the article excerpt referring to check all that apply