The Strongest Point in the Case Against Activism Is That

The strongest point in the case against activism is that

A) so many segments of private aggregate demand are unstable.
B) activist policy,even if desirable,is too difficult to perform well enough.
C) private aggregate demand is basically stable.
D) policy rules for targets have been proven by the record of the Fed in the 1980s and 1990s to be perfectly feasible.