What countries founded colonies in North America during the age of exploration

Which of the following led to a continuation of the treatment in the excerpt above? a)the brutality of the trans-atlantic african slave trade. b)spanish repression after violent native uprisings in new spain during the 16th century. c)european competition to quickly establish colonial holdings in the new world. d)the reliance of the spanish on native americans to provide labor under the encomienda system.

Why did the other allies like great britain and france not support wilsons 14 points?

Which would be good historical evidence when studying manifest destiny?