Answer:
African Chiefs
Explanation:
Knowing the history of the cruel enslavement of about 15 million African slaves you would know that the African Chiefs would usually sell these people to the European merchant, which then started a giant human trafficking/distribution circle of Africans being sold as slaves. Usually tasks such as farmers, builder's, maids, and caretakers for slave owner's children, although the European merchants are much to blame, the circle would have never started if it wasn't for the African Chiefs that sold them to slavery.
Hope this helps.
