According to the assumptions of the quantity theory of money, if the money supply increases by 5 percent, then a. nominal and real GDP would rise by 5 percent. b. neither nominal GDP nor real GDP would change. c. nominal GDP would rise by 5 percent; real GDP would be unchanged. d. nominal GDP would be unchanged; real GDP would rise by 5 percent.

c. nominal GDP would rise by 5 percent; real GDP would be unchanged.

Explanation:

According to the quantity theory of money, the price level in an economy is directly related to the amount of money circulating in that economy.

If the money supply increases by 5 percent, what this will cause is an increase in the general price level of the economy, in other words, inflation, leading to a similar rise in nominal GDP, but leaving real GDP unchanged, since GDP is based on a constant year prices, unless the actual production of goods and services also increases, in which case, it would not necessarily increase by exactly 5 percent.