Hi,
Here are a few advantages that should help you answer your question:
1. superior leadership in Abraham Lincoln
2. greater population – 22 million people
3. military power – a five to two advantage in men who could fight, a navy, war machinery industrial power
4. more factories
5. more money
6. more railroads
7. more farmland where food crops, not cash crops were grown
Scared people to not read it
If you are talking about the Revolutionary War, I believe that the French brought the Patriots supplies when they were in need.
I think it is b but idk tho
reserve supplies; conscription; general staff; reserve troops