The correct answer is C) African slave traders.
African slave traders launched warring raids to acquire Africans to sell into slavery.
We are talking about the Slave Trade in Africa, an important part of the triangular slave trade between America, Europe, and Africa. Historians believe that 12 million slaves were transported from Africa to America to be sold as slaves. African slave traders launched warring raids to acquire Africans to sell into slavery. They "shipped" the slaves into the ship and packaged them in inhuman conditions. Indeed, many slaves died during the trip before getting to the Americas. This trip was known as the Middle Passage.
