According to the Monetarists,"Policy Activism" Is Difficult If Not Impossible

Multiple Choice

According to the Monetarists,"Policy activism" is difficult if not impossible to perform successfully because

A) the timing of policy impacts on nominal GDP are known.
B) the magnitude,size of impacts are known.
C) the timing and magnitude of the impact of AD disturbances are known,forecasted with precision.
D) Monetarists believe all of the above are correct.