Answer:
Europeans explored and claimed that more and more land was there. They had to make relations with people who were already in the Americas and try to find a way to conquer them and claim that land theirs.
hope this helps and feel free to add brainiest
The answer is unsure to me because i don't see the examples above, but I'd go with d.
The Americans at the time hated communism and it was a crime so the us tried to stop it
