Which of the following statements is true? 0 If aggregate expenditures exceed real GDP, the economy will expand, causing production of goods and services to increase and unplanned inventories to rise. 0 Once macroeconomic equilibrium has been established in an economy, there is no tendency for real GDP to change, even if there is a change in autonomous expenditure, O lfthe MP5 equals 020 and the MPI is 0.05, then an initial change in government spending of $200 million will result in a total change in equilibrium real GDP of $800 million. Q If the actual unemployment rate is a percent, and the natural rate of unemployment is 8 percent, then the economy is producing a level of Real GDPthat is less than the level of potenal Real GDP