If the Natural Unemployment Rate Falls

Multiple Choice

If the natural unemployment rate falls

A) the long-run Phillips curve shifts rightward and the short-run Phillips curve does not change.
B) the long-run Phillips curve shifts leftward and the short-run Phillips curve does not change.
C) the short-run Phillips curve shifts rightward.
D) the short-run and long-run Phillips curves both shift leftward.
E) the short-run and long-run Phillips curves both shift rightward.