Please help this is from the Texas Revolution Brainpop.

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 conflict ended the false doctrine of "states rights"

10. a driver should evaluate the condition of the intended driving path as being