The correct response is:
Both took place throughout the Americas, although the encomienda system was found in places taken over by Spanish colonizers.
The encomienda system was established by the Spanish in their colonies in the Americas, primarily in areas such as present-day Mexico, Central America, and parts of South America and the Caribbean. Chattel slavery, on the other hand, was prevalent in various regions, particularly in the southern English colonies of North America and the Caribbean. Both systems involved the exploitation of labor, but they were implemented in different contexts and regions.