I think it's B, but I'm not 100% positive.
Answer: the Origins of American Slavery -
Explanation: In 1619, colonists brought enslaved Africans to Virginia. This was the beginning of a human trafficking between Africa and North America based on the social norms of Europe. Slavery grew quickly in the South because of the region's large plantations.
The gather enough support on its accomplish for the Constitution to ensure its ratification and lead to the adoption of the first ten amendments.
Each state governed itself.
The Articles of Confederation.