Ummm I'm not sure have you tried to look it up
The answer is obviously D. Thousands and thousands of Native Americans were killed for their land by the Europeans and everybody in the world knows that blacks were slaves at one point in history.
Answer:
The answer to the first question is the second one. Developed great civilizations without major influences from western Europe. The second one I think is developed mathematic and scientific systems.
Explanation:
The reasons for the fall of the empire include military overreach, invasion by emboldened tribes of Huns and Visigoths from northern and Central Europe, inflation, corruption and political incompetence
