-If the Economy's Potential Output Is $550 Billion and the Equilibrium

-If the economy's potential output is $550 billion and the equilibrium interest rate is 7 percent:

A) there is an inflationary gap of $50 billion
B) the monetary authorities should increase the money supply from $50 billion to $110 billion
C) the economy is operating at its potential output
D) there is a recessionary gap of $200 billion
E) there is an inflationary gap of $200 billion