Answer :
Answer:
Option A
Explanation:
Though the Confederates believed that their agricultural (especially cotton) production was crucial to wartime success and ultimately diplomatic recognition from the outside world, the Union's industrial strength and much larger population proved to be just as, if not more, central.
Hope this helped ;)
Answer:
a) The supremacy of industry over agriculture
Explanation:
The supremacy of industry over agriculture was proved by the Union's victory in the Civil War. It's large industrial power lead to the Union's victory in the Civil War. Hence, option (a) is the answer.