PLEASE ANSWER FAST Explain why the U. S. decided to change its goal from protecting western settlements to attacking Native Americans and forcing them onto reservations.

Reformers felt that the policy of forcing Native Americans onto reservations was too harsh while industrialists, who were concerned about their land and resources, viewed assimilation, the cultural absorption of the American Indians into “white America ” as the sole long-term method of ensuring Native American survival.

Explanation:

can someone me with this question:  

1) the end of the conflict between the north and the south didn’t just mark the end of a war; it marked the end of an entire way of life.” which statement best describes what this statement means?  

a) the southerners were no longer free and were controlled by the northern states.

b) the industrial economy in the north was not sustainable.

c) slavery became illegal, which changed completely the south’s labor force and the agricultural economy was destroyed.

d) the states decided to relinquish their independence and return to britain’s rule.