Colonists were assigned groups of indigenous Americans as legal slaves in return for tax revenues and promises of obedience. is true. Option C
This is further explained below.
<h3>What is the encomienda system?</h3>
Generally, The encomienda was a system of Spanish colonial rule that rewarded conquerors with the service of non-Christian peoples they had subjugated via forced labor.
In conclusion, In principle, the conquerors for whom the slaves worked were obligated to offer advantages to the slaves in exchange for their labor.
These privileges included education and protection from the conquerors' armies.
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