Question

(LC)Which of these contributed to the Union victory in the Civil War?

a blockade of Southern ports

alliances with France and Britain

the outbreak of slave rebellions in the South

Virginia's failure to secede from the Union

Answer 1

the first one, the union were able to block southern ports :)

Answer 2

a blockade of Southern ports

Step-by-step explanation:

The only correct option would be the blockade of the Southern Port, with no trade and no ways to send their products to England, the southern states were out of economical support, if you add to that the fact that most of the main battles were fought in their territory and most of the damage was done to their states, they couldn´t continue fighting.