Why did southern Republicans lose power during the 1870s

Ineed because i cannot find the answers anywhere

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.

Which action would the president's political party most likely take to resolve this issue