Which is not true about the plains indians

the answer would be logic.

d. promised it other land

it affected it because the kingdoms (with trade) slowly got richer and richer.

the government paid religious orders to provide basic education to native american children on reservations. in the late 19th and early 20th centuries, the bureau of indian affairs (bia) founded additional boarding schools based on the assimilation model of the off-reservation carlisle indian industrial school.