Answer:
b. It was the Communist nations of Eastern Europe.
Explanation:
it separated the communist nations, but it was just a name not a physial thing.
Because of the Natives there that were not friendly with them.
Give me that brain first ;)
The conquerors saw native American as wild people. In some cases, they tend to fable about the native, as if they were anthrophages or magicians. You can read in colonial chronicles as the one whom Alvar Nuñez Cabeza de Vaca wrote -Naufragios- or even the chronicles which Cristóbal Colon wrote, how Europeans experienced the difference between the cultures.
I believe it's C. America has been known for Assimilation, an example of this is when the Native Americans were forced to assimilate with the American Culture.