The Confederacy had a victory at the Battle of Chickamauga which pushed the Union Army back into Tennessee. However, this gave the Union an opportunity to prepare a surprise attack to capture ________, which was the railroad hub of the Confederacy.%0D%0A%0D%0AA. %0D%0ASavannah%0D%0A%0D%0AB. %0D%0AMilledgeville%0D%0A%0D%0AC. %0D%0AAugusta%0D%0A%0D%0AD. %0D%0AAtlanta

D. Atlanta