Answer:
The correct answer is (D)
Step-by-step explanation:
New classical "rational expectations" theories about how expectations are formed, are completely wrong. That is, prices and wages may not be free to adjust in response to policy changes.
This is the basis of New Keynesian economics, which emerged from the Classical Keynesian economics.
New Keynesian theorists argue that wages and prices are sticky (hardly adjust) in the face of short term fluctuations in the economy. This means or explains that short term federal monetary policies do not have such a great influence on wage level and price level in the macroeconomy.