The general consensus amongst historians is that the balance between Federal and State powers was done to appease those who were afraid that too strong of a federal government would be no different than the monarchy that the colonists were overthrowing.
I believe the answer to be C. checks and balances
The un-employment rate in the us during 1934 was 21.7% and The further weather drought problems in the US Midwest continued and some 35 million acres of farmland were utterly destroyed and a further 225 million acres were in danger.