Answer: b. Civilian Conservation Corps (CCC)
Explanation:
The Civilian Conservation Corps was a Great Depression Era project by President F.D. Roosevelt to get young men working. They were paid a small stipend and given accommodation in various camps across the nation to work on Government projects.
When the war broke out Congress shutdown the program in an effort to bolster US army ranks this leaving the camps unoccupied.
With the US now capturing German Prisoners of war, they converted these former camps into POW camps to keep the captured POWs.
The rulers of Italy before the Romans were the "Etruscans", although it should be noted that the Etruscan dominance of the region was not even close to the Romans' in terms of power and political nature.
The Byzantine Empire was comprised of Greece, Syria, Palestine, Asia Minor, and Egypt. They traded with each other, as well as China, Africa, India. The language they spoke was Latin, and they gradually changed to Greek.
The early 1800s saw the United States quickly grow in size. New immigrants and new land meant a bigger and stronger country. It also meant displacing thousands of Native Americans and the continued spread of slavery.