For a monopolist, marginal revenue is lower than price

Your bank has the following balance sheet:

Assets Liabilities Reserves $ 50 million Checkable deposits $200 million Securities 50 million Loans 150 million Bank capital 50 million If the required reserve ratio is 10%, what actions should the bank manager take if there is an unexpected deposit outflow of $50 million?

According to the following table, how much higher are prices in 2021 compared to in 2019?

a. 48 percent
b. 75 percent
c. 93 percent
d. 175 percent