Answer:
B. The economy would have enjoyed a much higher level of output in the mid-2000s.
Step-by-step explanation:
This choice is based on the theory of production capacity, which tries to explain that industrial capacity of companies increases with increased supply of production resources. Capital is one of the production resources which is increased with increased supply of US dollars. Increased money supply increases the capital which banks can lend out to companies to increase their production capacity.
On the other hand, where this to be based on the theory of inflation, a different answer would have been produced. The theory of inflation recognizes that the average inflation rate increases proportionately to a percentage increase in money supply, among other factors that influence inflation rates.
That the price level in 2005 would have been about 28 percent higher than what it actually reached in that year is highly speculative. And D is certainly not the correct option, because the economy's output is increased with increased production capacity caused by increased money supply.