Answer-If money is neutral,

If money is neutral a change in the money supply only affects nominal variables such as prices and wages.

Question

If money is neutral,

A an increase in the money supply does nothing.

B a change in the money supply only affects real variables such as real output.

C a change in the money supply reduces velocity proportionately; therefore there is no effect on either prices or real output.

D a change in the money supply only affects nominal variables such as prices and wages.

E the money supply cannot be changed because it is tied to a commodity such as gold.