45 line 20 16 AE Aggregate planned expenditure (trillions of 2005 dollars) 12 CO 4 8 12 16 20 24 Real GDP (trillions of 2005 dollars) In the above figure, if real GDP is greater than $12 trillion, inventories will be Select one: O a. below target levels so firms decrease production. O b. below target levels so firms increase production. O c. above target levels so firms increase production. O d. above target levels so firms decrease production