Answer: b. Civilian Conservation Corps (CCC)
Step-by-step 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.