Which of the following best describes why banks aren't allowed to loan out all of their deposits at once?

A. If banks loaned out all of their deposits, the money supply would grow much too slowly

B. If banks loaned out all of their deposits, it would be impossible to meet customers' demands for withdrawals

C. If banks loaned out all of their deposits, there wouldn't be enough money left to provide new customers with loans

D. If banks loaned out all of their deposits, the government would be unable to calculate the bank's tax burden​