Answer:
C) slaves from the Africans for labor.
Step-by-step explanation:
As the colonies grew, the new European settlers needed to find laborers that could work on their lands. Although Native Americans were initially used, this proved to be inefficient, as most of them soon died due to disease and mistreatment. Europeans laborers were brought as well, until African slavery was well established. This provided settlers with a steady flow of workers, leading to some of the worst tragedies and abuses the world has ever experienced.