Which statement accurately compares the effects of the U.S. Civil War on the various social classes of South Carolina's black population?
Free blacks moved to Northern cities for work, while slaves joined the Union army.
Free blacks were expected to fight, while the enslaved enjoyed lighter workloads due to absent masters.
Previously free blacks saw few changes following the war, while former slaves had new opportunities.
Free blacks chose to move out West, while slaves band together to create their own troops.