hope this helps !!!
The Pueblo III Period (AD 1150 to AD 1350) was the third period, also called the "Great Pueblo period" when Ancestral Puebloans lived in large cliff-dwelling, multi-storied pueblo, or cliff-side talus house communities.
(not in my own words btw)
source:wiki
I THINK YOU MEAN PUEBLO :)
The union was in the north where all of the factories were. The confederacy did not have the supplies that the union did.
I believe the answer is A. Production increased due to the demand for goods worldwide.