Monetary neutrality means that a change in the money supply select one: a. does not change nominal variables. most economists think this is a good description of the economy in the long run but not the short run. b. does not change nominal variables. most economists think this is a good description of the economy in the short-run and the long run. c. does not change real variables. most economists think this is a good description of the economy in the short run and in the long run. d. does not change real variables. most economists think this is a good description of the economy in the long run but not the short run.