When faced with stagflation due to a leftward shift in the short-run AS curve, policymakers may under some circumstances (select all options that are possible): Select one or more: a. attempt to offset the effects on output by using expansionary monetary or fiscal policy b. attempt to offset the inflationary effects by using contractionary monetary or fiscal policy. c. do nothing, in which case the short-run AS curve will continue to shift to the left due to inflationary pressures d. do nothing, in which case the economy will eventually self-correct and output returns to the natural level