Modern view of stabilization

Despite ongoing debates about the appropriateness of macroeconomic policies, many macroeconomics have reached a modern consensus on several important issues.

Which of the following statements regarding fiscal policy are true according to the macroeconomic consensus in the United States? Check all that apply.

Expansionary fiscal policies should be used to keep the unemployment rate below the natural rate.?

The Federal Reserve, not Congress and the President, should be in charge of government spending and taxes?

Policy lags generally make fiscal poliocy an impractical stabilization tool in countries like the United States, except perhaps in severe recessions?