Darlyj
Answered

Why did Spanish settlers turn to African slaves to provide the labor for their American colonies?

AThe price of African slaves dropped dramatically in the early 1500s.
BThe Native American population had been greatly reduced through war and disease.
CThe Spanish settlers were unwilling to work.
DAfrican slaves proved to be better workers than Native Americans.

Verified Answer :

BThe Native American population had been greatly reduced through war and disease.

The encomienda system didn't work because natives died of disease and also because the natives already knew the land and could easily escape if they wanted to. African slave labor was more effective because Africans had already been in contact with the Europeans for centuries (meaning they had built up a natural immunity to their Euro diseases) and also because even if the Africans ran away, they wouldn't know where to go.