Answer:
D. slaves
Explanation:
During the era of European settlement between 1600 and 1820, most Africans who came to the Americas arrived as slaves. Africans began being imported from Africa especially the western part of Africa as slaves during this time and were forced to work by the Europeans in their plantations.
The end of Southern reliance on agriculture because of the end of slavery and as a result this put a dent in the economy of the southern states and would create ripple effects many years after the end of the Civil War
Americans had a wealth of vehicles, tanks, and other military equipment that they have been building even before they joined the war, and when they did, they had a large amount of fresh troops that were eager to fight
hope this helps
I believe that the cash crops and the need for those cause a lot of slave trading. Americans used a lot of slaves to help build up cash quickly.
Answer:
Charlemagne was crowned in 800, and his coronation could be considered the starting point for the Holy Roman Empire.