Is the following a positive or normative statement? The Federal Reserve should set an inflation target and employ policies to meet the target

Under sticky prices

A) a fall in the money supply raises the interest rate to preserve money market equilibrium. B) a fall in the money supply reduces the interest rate to preserve money market equilibrium. C) a fall in the money supply keeps the interest rate intact to preserve money market equilibrium. D) a fall in the money supply does not affect the interest rate in the short run, only in the long run. E) a fall in the money supply raises the interest rate to preserve money market equilibrium in the long run.

The marginal product of labor is calculated using the formula

A) L/Q. B) ?L/?Q. C) ?Q/?L. D) Q/L.