3. The long-run effects of monetary policy The following graphs plot the long-run equilibrium situation for an economy. The first graph plots the aggregate demand (AD) and long-run aggregate supply (LRAS) curves. The second graph plots the long-run and short-run Phillips curves (LRPC and SRPC, respectively). LRAS O AD LRAS PRICE LEVEL AD 3 6 9 12 15 18 OUTPUT (Trillions of dollars)(?) LRPC O SRPC LRPC INFLATION RATE SRPC 0 2 4 6 8 10 12 UNEMPLOYMENT RATE (Percent) Which of the following statements are true based on these graphs? Check all that apply. O The natural level of output is 6%. It is impossible to determine the natural rate of unemployment from these graphs alone. The natural rate of unemployment is 6%. Suppose the central bank of the economy pursues a policy that increases the money supply. Show the long-run effects of this policy on both of the graphs by shifting the appropriate curves.The long-run effect of the central bank's policy is in the inflation rate, in the unemployment rate, and in real GDP