What is the evidence progress is positive and explanation in (Santa, Chief of the Kiowas; speech given at the medicine lodge treaty council, October, 1867)

Among its provisions, the Medicine Lodge Treaty relegated the Cheyenne to lands south of Fort Larned. The treaty also allowed the tribes to collect annuities, or gifts, from the government. To the US government, gifts were less expensive than war. Hopefully i helped.

Explanation:

the actual answers are a, b, and d.