Why did the United States government stop making treaties with the American Indians by 1871?
A. It had taken all American Indian land and did not need to make any more treaties.
В.
It did not want to give anything to American Indians in return for the land that it took.
C. It had passed a law that ended all treaty-making with American Indians.
D. It had set up borders for American Indians and considered them to be citizens of the United States.