Which best describes why politicians spend millions of dollars on advertising during elections? to reinforce their messages to dissuade people from voting for their opponents to influence voters to generate donations *answer might be c. if not put the correct answer below

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.