Refer to the graphs below. Graph A is constructed on the basic assumption that:

In the graphs below, QP refers to the economy's potential output level.





A. The price level is not flexible

B. Nominal wages are unresponsive to price-level changes

C. Real output is unresponsive to price-level changes

D. Unemployment is unresponsive to price-level changes

B. Nominal wages are unresponsive to price-level changes