It's not B because agricultural products were actually overproduced so B is incorrect which leaves either A or C, personally I believe the answer is C but over 5000 banks did fail during the great depression sorry I can't give a straight answer
I think the answer is C because when the stock market crashed in 1929, everyone was rushing to the bank to withdraw all their funds at once. In addition to that, during the first 10 months of 1930 (the year after the stock market crash), 744 banks failed and by the end of the 1930’s 9,000 closed in total.