If the Government Wishes to Promote a Higher Rate of Growth

If the government wishes to promote a higher rate of growth of real GDP, a supply-side economist would argue the appropriate policy is

A) engaging in expansionary fiscal policy by lowering marginal tax rates.
B) engaging in expansionary fiscal policy of increasing government spending.
C) lowering marginal tax rates on people and raising them on corporations.
D) leaving the economy alone and letting the natural forces bring it into a long-run equilibrium.