In the Keynesian Model in the Long Run,a Decrease in the Money

Multiple Choice

In the Keynesian model in the long run,a decrease in the money supply will cause

A) a decrease in output and an increase in the real interest rate.
B) an increase in the real interest rate but no change in output.
C) a decrease in the real interest rate and a decrease in output.
D) no change in either the real interest rate or output.