Why Did the Spanish and Portuguese Increasingly Rely on Dark-Skinned

Multiple Choice

Why did the Spanish and Portuguese increasingly rely on dark-skinned Africans to serve as slaves in their colonies in the Atlantic and the New World by the sixteenth century?

A) They believed that most dark-skinned Africans were Muslims and as such were long-standing enemies of Christianity.
B) Because so many of the indigenous peoples of the New World had been worked to death or had perished from European illnesses, the Europeans needed an alternative source of cheap labor.
C) They argued that the native Americans were lazy and unsuited to plantation labor.
D) They found that the costs of transporting African slaves to the New World were lower than the costs of transporting European slaves across the Atlantic.