What Is the Reserve Requirement

What is the reserve requirement?

A) the requirement that the federal government have at least 10 percent of the federal deficit on hand in liquid assets at all times
B) the rule that every bank must have a certain amount of cash and negotiable securities on hand at all times
C) the demand that there should never be more money circulating in print or computer accounts than there is gold in the U.S.Bank
D) the requirement that the Federal Reserve Board limit the deficit to 10 percent of the gross domestic product
E) the interest rate on loans between banks that the Federal Reserve Board influences by affecting the supply of money available