Which of the Following Statements About the Long-Run Phillips Curve

Multiple Choice

Which of the following statements about the long-run Phillips curve is NOT accurate?  

A)  Unemployment is at the natural rate. 
B)  Employers and workers have the time and ability to adjust fully to unexpected changes in aggregate demand. 
C)  The only choices for policymakers are different levels of inflation. 
D)  Inflation and unemployment are inversely related.