Answer:
C!
Explanation:
Overproduction can cause downfalls, due to the fact that there's too much production, and during the Great Depression most people did not have jobs, and struggled with economy.
The declaration of independence was a letter written to the king of England claiming that the 13 colonies were free. It also stated that no acts of tyranny would be tolerated.
He focused on creating a model communist state, he abolished all privately owned farms and replaced them with collectives, he outlined several five year plans to direct industrialization.