Answer:
C) Europeans quickly discovered that trade and negotiation were more secure and profitable ways to get slaves than using force
Explanation:
Slavery was a common practice during colonial times, particularly in the Americas. Spanish, British, Portuguese and Dutch colonies had plenty of slaves working and living in their colonies. Almost all of these slaves were African or of African descent, most likely brought by slaver ships from the Western coast of Africa. To procure slaves, sailors would travel to Western Africa and purchase slaves from African tribes who caught and sold slaves from rival tribes. Since there was much tribal conflict between African tribes and slavery was already a common practice there, it was easier for Europeans to buy slaves from Africans at a very cheap price and resell them at auctions in the Americas.
