Answer:
Option B.
Step-by-step explanation:
A legal system that allowed Spanish colonists to use indigenous people for labor, is the right answer.
Encomienda was a labor system in Spain. It remunerated conquistadors with the indigenous people as a labor force. This system was set up after the Christian subjugation of Muslim provinces. Conquered peoples were regarded as slaves of the Monarch of Spain. The Monarch conferred an encomienda as a privilege to a special individual.