Which answer best explains the effect of the invention of the cotton gin on slave labor in the south? (1 point) the cotton gin made it possible to plant cotton in even the hardest soil. because of this, cotton could be grown everywhere, and the slave labor increased into new territories. the cotton gin allowed for the same amount of cotton to be harvested by fewer workers. this allowed slave owners to put slaves to work doing more technically advanced work. the cotton gin allowed for seeds to be removed from cotton very efficiently. cotton became profitable, and plantation owners used slave labor to grow and harvest as much as possible. the cotton gin made the process of making cloth from cotton easier for factories in the north. the factories demanded more cotton, and southern farmers used slave labor to fill that demand.