As the West Grew Increasingly Integrated with the National Economy

As the West grew increasingly integrated with the national economy, the lives of Plains Indians permanently changed. How did the government respond to the conflict that arose from Indians who resisted these changes?

A) The government signed a treaty promising to respect what remained of the Indian tribes and their culture.
B) The government sent troops to destroy the Indian economy such as by attacking their horses and buffalo.
C) The government left all Indian tribes alone since it wanted to maintain good trade relations.
D) The government kindly invited tribes to move to unsettled land in Canada.
E) The government initiated an official campaign to move all Indian tribes to Mexico.