How did United States' policy toward Native Americans change after the War of 1812?
a. The federal government sought to remove Native Americans altogether from the eastern half of the continent.
b. The United States agreed to recognize all Native American rights and territorial claims from before the war.
c. The United States began aggressively pressuring Native Americans to adapt to white American culture.
d. American leaders adopted an assimilationist rhetoric, urging Native Americans to intermarry with whites.