Each of the Following Is Something That Economists Know About

Each of the following is something that economists know about the making of macroeconomic policy except

A) that automatic stabilizers are important factors that help eliminate the need for discretionary stabilization policy.
B) that economic policy affects output and prices with known lags.
C) that monetary policy is the most useful discretionary stabilization policy tool.
D) that growth in the money supply is the ultimate determinate of inflation.