Suppose a supply shock shifts the aggregate supply curve from AS1 to AS2, and decreases output below full employment. If the Fed then decreases the money supply, it will Group of answer choices decrease the price level and shift the aggregate demand curve to the right until output returns to its full-employment level stabilize the price level and return output to its full-employment level stabilize the price level, but cause a further decline in output increase both output and the price level return output to its full-employment level, but at the expense of an increase in the price level