Many American Indian tribes practiced assimilation, which meant they A. shared their culture with white settlers. B. discarded white American culture entirely. C. abandoned their own cultures entirely. D. adopted white American culture as their own.

The Native Americans could discard white American culture. They didn’t abandon their own culture because they still held their cultural value as they were dying in large numbers. They did adapt to white culture but they still maintained their own.

The answer is A, they shared their culture with white settlers.

From mexican american war , us gained new mexico.