The answer is "A", "They benefited from the trade networks".
A trade network is an arrangement of individuals in various terrains who exchange products forward and backward. Trade includes the exchange of merchandise or administrations starting with one individual or element then onto the next, regularly in return for cash. A framework or system that permits trade is known as a market. An early type of trade, barter, saw the immediate trade of merchandise and enterprises for different products and ventures.
First, had the Confederacy won the Civil War, slavery would have undoubtedly continued in the South. As a result of the Emancipation Proclamation and the Union victory, slavery was abolished. ... A victory by the North did equate to the end of slavery. A victory by the South would have meant the opposite.
As part of his Reconstruction plan, President Johnson thought the South should be treated relatively fairly, compared to how the radicals in Congress thought they should be treated.