One Timing Problem in Using Fiscal Policy to Counter a Recession

One timing problem in using fiscal policy to counter a recession is the "operational lag" that occurs between the

A) start of the recession and the time it takes to recognize that the recession has started.
B) start of a predicted recession and the actual start of the recession.
C) time fiscal action is taken and the time that the action has its effect on the economy.
D) time the need for the fiscal action is recognized and the time that the action is taken.