How did these men gain their power and keep throughout the late 1930s and throughout the 1940s?

In the late 1800s, the purpose of the reservation system was to a. relocate american indians and to provide land for white settlers. b. give american indians more freedom to move from place to place. c. create a housing system to american indians assimilate. d. offer american indians good farmland in exchange for relocation.