The "Velocity of Circulation" Refers to the

The "velocity of circulation" refers to the

A) average number of times a dollar is deposited and withdrawn from a bank account.
B) ratio between the quantity of money and the price level.
C) average speed with which the nominal interest rate changes when the inflation rate changes.
D) average number of times in a year each dollar is used to buy goods and services.
E) average speed with which the Fed increases or decreases the quantity of money.