Answer the question please

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.

What was the most explosive issue facing the united states prior to the start of the civil war?

All of the following were restrictions on free african americans, who lived primarily in the upper south except: