Because they had more support from the beginning. And they had slaves which supported the factories in the North. The North relied heavily on them.
Answer:
When we talk about the largest, it's always China.
Yes amu you heard tht right People's Republic of China has the largest naval and army forces.
I think it's D as it was the overproduction not under production of goods that contributed to the great depression. Sorry if I'm wrong, that just seems like the logical answer