Why Does the Short-Run Aggregate Supply Curve Shift to the Right

Multiple Choice

Why does the short-run aggregate supply curve shift to the right in the long run, following a decrease in aggregate demand?

A) Workers and firms adjust their expectations of wages and prices downward and they accept lower wages and prices.
B) Workers and firms adjust their expectations of wages and prices downward and they push for higher wages and prices.
C) Workers and firms adjust their expectations of wages and prices upward and they push for higher wages and prices.
D) Workers and firms adjust their expectations of wages and prices upward and they accept lower wages and prices.
E) Workers and firms adjust their expectations of output and price levels upward and they thus accept lower output as normal.