Answer:
The Enlightenment ideas were the main influences for American Colonies to become their own nation. ... Some of the leaders of the American Revolution were influenced by Enlightenment ideas which are, freedom of speech, equality, freedom of press, and religious tolerance.
The transatlantic slave trade began during the 15th century when Portugal, and subsequently other European kingdoms, were finally able to expand overseas and reach Africa. The Portuguese first began to kidnap people from the west coast of Africa and to take those they enslaved back to Europe.
C. Great Britain, France, Italy, and the U.S.