What was the agreement that the sioux accepted in return for peace under the fort laramie treaty of 1868?

The agreement that the Sioux accepted in return for peace under Fort Laramie Treaty of 1868 was that they would settle within the Black Hills reservation that lied in the Dakota territory. This agreement brought peace between the Sioux and the whites. I hope the answer comes to your help.

Ithink it is c. the government would try to limit the influence of outside cultures.