Answer :
Before the 1500's Africans had been sold as slaves to North African Arab traders. However in the early 1500's the Spanish and Portuguese became active in the slave trade(exchanging manufacture goods for slaves) and sending slaves to the West Indies or the Middle Passage where they would then be dropped off and sold. The Middle Passage was a boom for slave trade as the Portuguese and Spanish traders would pile up as many slaves as possible in a boat and then trade them for huge profits. However, when the slaves were piled up in the boat, they experienced terrible conditions such as diseases and even death, as well as being chained for the majority of their time on the boats.
Answer: A. Enslaved people were sent to the americas by spanish and Portuguese as laborers.
Explanation:Slavery has been a concept that lived with humanity for a long time, but the Portuguese and Spanish changed it deeply. Before them, slavery was connected with those who lost a war or had debts or were born is a low social class.
With the Spanish and the Portuguese, they started to explore the Continent of Africa and use Africans as slaves in the Americas. This started around the 1500s and lasted a few centuries. With this exploration, slavery became directly linked to race and color of the skin, something that did not happen before the exploration of the African countries.