The correct answer is A) Sell farms they repossessed.
When the Great Depression began after the Stock Market Crash of 1929, American citizens lost their homes due to their inability to pay their mortgage. Since they receieved these mortgages from banks, the banks would take control of their farms when they defaulted on their payments.
Even thought the bank gained the farm, very few people were buying farms at this time due to the economic depression. This resulted in banks continually losing money on the land they possessed.