Multiple Choice. Look at the diagram and answer the question. What does the diagram illustrate? (1 point) Responses the effects of stock speculation on the stock market crash that started the Great Depression the effects of stock speculation on the stock market crash that started the Great Depression the effects of buying on margin on creating the bull market preceding the Great Depression the effects of buying on margin on creating the bull market preceding the Great Depression the effects of the overextension of credit on the severity of the Great Depression the effects of the overextension of credit on the severity of the Great Depression the effects of tariffs on the stability of the economy during the Great Depression the effects of tariffs on the stability of the economy during the Great Depression