What was the impact of the Great Depression on the US?

The Great Depression started when the Wall Street Exchange of USA crashed in 1929.

A. As a result, values of shares dropped drastically, and the national income of the USA fell by half.

B. Hundreds of American banks, factories, mining companies and business firms went bankrupt.

C. There was large scale unemployment, poverty and starvation in the country. The effects of this recession in the US economy were felt worldwide.