The Monetarists Believe That an Increase in the Money Supply

The monetarists believe that an increase in the money supply of about 4% per year,regardless of economic conditions,is a good monetary policy.Why was 4% chosen?

A) It reflects the fact that the output of the economy has been growing at about 3 to 4% per year,and a 4% increase in the money supply would tend to stabilize the price level.
B) By equating the money supply growth rate and the unemployment rate,the monetarists believe that the output of the economy will increase.
C) By restricting the increase in money supply to 4%,the monetarists hope to limit fluctuations in the price trend to 4% and stabilize velocity.
D) Price fluctuations have been shown to be historically more than 4%.By a steady 4% increase in the money supply,the monetarists hope to drive prices down.