The Economy May Continue to Experience Cyclical Unemployment Because

The economy may continue to experience cyclical unemployment because:

A) it is difficult to use stabilization policy in a timely manner.
B) policymakers may not know if fiscal or monetary policy is more appropriate.
C) policymakers know precisely how much to change government spending or the money supply in order to achieve full employment.
D) policymakers are willing to enact the appropriate policy regardless of the political consequences.