What method did the Union use to stop most of the South cotton trade

the method that Union use to stop most of the South cotton trade is: A. A large naval blockade When the union blocked the route, the cotton distributor is forced to take a much longer route in order to achieve its destination. This way, the cotton producer would not be able to fulfill the customer's order

The technique did the Union use to stop the vast majority of the South's cotton exchange is an expansive maritime barricade since the South managed the greater part of its exchange needs through water ports. A barricade is a push to cut off provisions, war material or correspondences from a specific territory by compel, either to a limited extent or completely. A barricade ought not be mistaken for a ban or authorizes, which are lawful obstructions to exchange.