According to the Original Keynesian Model,there Would Be Counter-Cyclical Movements

According to the original Keynesian model,there would be counter-cyclical movements of the real wage rate in response to changes in aggregate demand because

A) firms react to nominal wages and workers respond to real wages.
B) firms react to real wages and workers respond to the expected real wage.
C) firms are on their labor demand curve and workers are off their labor supply curve.
D) firms are off their labor demand curve and workers are on their labor supply curve.