Answer:
lack of labor
Step-by-step explanation:
After the war, the South suffered from destroyed buildings, railroads, plantation and the like. However, many of the slaves became free. This meant that there was no lack of labor even after the war. These free slaves started working on lands again through the sharecropping system. This allowed the black people to rent a small area of land from a landlord. When harvesting day comes, the sharecropper would give a portion of his harvest to the landlord. This happened in the early years of the Reconstruction period.