Which of the Following Best Describes the Economic Dynamic of the Great

Which of the following best describes the economic dynamic of the Great Depression?

A) Economic uncertainty prompted dramatic increase in the labor force participation rate.
B) Plummeting sales and lack of consumer confidence triggered a surge in the trade deficit.
C) Declining sales tax revenue triggered a disproportionate rise in income taxes.
D) Mass unemployment and the lack of investment triggered a devastating cycle of deflation.