Answer:
a. National Grange, to improve farmers' lives.
Explanation:
After Oliver Hudson Kelley toured the South in 1866, he and several other government clerks founded the National Grange, to improve farmers' lives.
This organization was the first major farmer organization but as time went on the organization then started interfering with social, political and economic issues in the society.
The great depression resulted in a nation wide decrease in food, money and work. This affected peoples ability to pay taxes. Without the government getting money from the people there was no trade happening between the USA and other countries and that resulted in other countries losing essential products and harming them.
The Aztec Empire is located in Mexico so I believe it would be number 3
Along the <span> d) Appalachian mountains.</span><span />