Which of the Following Is Correct According to the Long-Run

Which of the following is correct according to the long-run Phillips curve?

A) No government policy, including changes in monetary growth, can change the natural rate of unemployment.
B) Changes in the money supply growth rate is the only government policy that can change the natural rate of unemployment.
C) Monetary policy cannot change the natural rate of unemployment, but other government policies can.
D) Monetary policy and other government policies can both change the natural rate of unemployment.