The answer to your question is c I researched it.
Grant wants Native Americans to assimilate the culture of white civilization. However as white settlers get the land of Native Americans, the natives had a little chance for farming resulting to their poverty. The Native Americans in return did surprise attacks and assassinate US generals and officials to get back their land.
By 1450, Islam had spread to all of the following regions except B. East Asia.
President Theodore Roosevelt was a reformer president to the extent that he was a true progressive--especially when it came to domestic issues. He enforced labor laws that protected workers, and was one of the first true conservationists--carving out large chunks of land for national parks.