Both C and D make sense, I would have to go with C though.
Answer:
When war broke out in 1861, kids across the North and the South said goodbye to their fathers, brothers, uncles, and cousins -- or joined the military themselves.
Explanation:
As many as 20% of Civil War soldiers were younger than 18. That was the minimum recruiting age for Union soldiers, but many people willingly overlooked the law.
HOPE IT HELPS
Answer: the economy flourished as the U.S was involved in shipping war supplies to Europe
Explanation: hope that helps
Pretty good. I don’t think this is a question for Brainly though.