I think C is the right answer
The best answer is B) All of the Above.
A) is correct. It is fairly common knowledge that the European United States largely considered the Native Americans to be "savages" and uncivilized.
C) They wanted to relocate them to reservations. In 1851, Congress passed a law to allocate land for Indian reservations. Several similar laws followed.
D) They wanted to treat them as foreign nations. The United States, and other European powers, had the instinct to apply inter-national relations guidelines to the Native Americans, which failed due to the diversity of tribes and the lack of history that the Native Americans had with relations of this kind
When I wrote about the crisis of unemployment in Europe, I received a great deal of feedback. Europeans agreed that this is the core problem while Americans argued that the United States has the same problem, asserting that U.S. unemployment is twice as high as the government's official unemployment rate. My counterargument is that unemployment in the United States is not a problem in the same sense that it is in Europe because it does not pose a geopolitical threat. The United States does not face political disintegration from unemployment, whatever the number is. Europe might.
The answer to this question is 4. Industrialization caused urbanization and a population boom.