HELP! Question refers to the excerpt below.

"And every Indian bom within the territorial limits of the United States to whom allotments shall have been made under the provisions of this act, or under any law or
treaty, and every indian bom within the territorial limits of the United States who has voluntarily taken up, within said limits, his residence separate and apart from any
tribe of Indians therein, and has adopted the habits of civilized life, is hereby declared to be a citizen of the United States, and is entitled to all the rights, privileges, and
immunities of such citizens, whether said Indian has been or not, by birth or otherwise, a member of any tribe of Indians within the territorial limits of the United States
without in any manner affecting the right of any such Indian to tribal or other property"-From the Dawes Act, 1887

How did the policy described in this excerpt reflect the goals of the US goverment in the late 1800s?

it’s purpose was to drive American Indians out of all the territory belonging to the United States

its purpose was to end the pre-Civil War-era culture of discrimination against native peoples, as well as against those who migrated into the country under
slavery

its purpose was to open more lands in the West to white settlement, but migration caused increased conflict with American Indians.

its purpose was to set aside lands for native peoples to exercise sovereignty and continue their traditional ways of life without interference,