Which of these was not a cause of the worldwide depression of 1920s and 1930s?

A) Banks made unsound loans.

B) An increase in international trade

C) Over-speculation in the US stock market

D) Workers wage did not keep pace with production

Your question was:

Which of these was not a cause of the worldwide depression of 1920s and 1930s?

A) Banks made unsound loans.

B) An increase in international trade

C) Over-speculation in the US stock market

D) Workers wage did not keep pace with production

I believe the answer is B, because anything positive would not influence something like The Great Depression. An international trade increase would increase Americas economy, which could possibly keep America from spiraling into a money drought.