Answer: b. Glass Steagal separated the commercial loan balance sheet of a bank from the investment banking arm (a much riskier part of bank operation). It was important because without this separation, when a bank fails due to bad investments, it also fails all of its commercial duties to keep the economy liquid.
Explanation:
The 1920s came with a fast rising American economy. The stock market portrayed this rise by making huge profits for the public and so people wanted to get into stocks more and more until the stock market crashed and million lost money.
Some of those who participated had borrowed the funds from commercial banks which now had losses as they had loaned out money that could be used for other commercial duties. The proponents of Glass Steagal believed that separating a bank's commercial side from investing would fix this.
