Answer:
African Slaves
Step-by-step explanation:
At first, the Europeans got the Native Americans to work, but a majority of them died from disease. After this, the Europeans traded American goods with African Chieftains in exchange for their people to be sent to the Colonies as slaves on plantations. This became the Triangular Trade: American goods were sent to England, England sent goods to Africa, and Africa sent slaves to America for labor to make more goods.