If the Correction Process That Eventually Eliminates Output Gaps Works

If the correction process that eventually eliminates output gaps works very slowly,so that actual output differs from potential output for long periods of time,then active

A) stabilization policies are probably not justified.
B) stabilization policies may end up doing more harm than good.
C) use of monetary and fiscal policy can cause actual output to overshoot potential output.
D) use of monetary and fiscal policy can help to stabilize output.
E) stabilization policies can cause the output gap to become larger.