Question

the current spatial pattern of indigenous populations in the us reflects......
a total assimilation to the dominant culture and abandonment of traditional lifestyles
the governments efforts to provide adequate and sufficient living spaces for native people
the governments efforts to set aside the most agriculturally productive land for indigenous people
a history of discrimination and forced removal into concentrated areas

Explanation:

The spatial pattern of indigenous populations in the US is a result of historical discrimination and forced removals (e.g., Indian Removal Act). They were not totally assimilated (many still practice traditions), and the land set - aside was often not agriculturally productive. The government's past actions were more about displacement than providing adequate spaces in a positive sense.

Answer:

a history of discrimination and forced removal into concentrated areas