Suppose That Rising Productivity Increases Potential Output in Each Period

Multiple Choice

Suppose that rising productivity increases potential output in each period by 4%. What kind of monetary policy would be needed to maintain a zero rate of inflation at full employment?

A) It should keep money supply constant.
B) It should increase money supply by 4% per period.
C) It should increase money supply by 4% in the first period and thereafter, hold money supply constant.
D) It should decrease money supply by 4% each period.