a) Some economists claim that the government should always use fiscal policy to stabilize (or target) the real interest rate in the short-run if they also wish to keep the resulting impact on (changes to) the government budgetary balance to a minimum. Is this claim true, false or uncertain? Explain by using words and one IS/LM diagram. b) The government should always use monetary policy to combat the effect of business cycle fluctuations coming from changes in autonomous consumption if it wishes to keep movements in unemployment & investment to a minimum. Is this claim true, false or uncertain? Explain by using words and a single IS/LM diagram. c) The government should never use monetary policy to combat business cycle fluctuations coming from changes in money demand if it also wishes to keep longer term movements in the price level to a minimum. Is this claim true, false or uncertain? Explain by using words and a single AS/AD diagram.