(05.02 MC) Use the graph to answer the question that follows. Graph has UNP rate along the horizontal axis and inflation rate along the vertical axis. A vertical line labeled LR corresponds to a horizontal axis value Uo. A second vertical line, labeled LR prime, is to the left of LR and corresponds to a horizontal axis value U1. In the accompanying graph, the long-run Phillips curve has shifted from LR to LR. Which of the following could explain this shift? (1 point) Expansionary fiscal policy that reduces unemployment and increases inflation A lower expected rate of inflation The economy moving, reaching full employment, with real GDP corresponding to long-run aggregate supply More efficient labor markets that reduce frictional unemployment and the natural rate of unemployment An inward shift in short-run aggregate supply that increases cyclical unemployment