GX-M 400 90 Real GDP 1 2500 1430 540 2400 1360 540 2300 1290 540 2200 1220 540 2100 1150 540 100 400 400 110 120 400 400 130 In the above table, C is consumption expenditure, I is investment, G is government expenditure, and X - Mis net exports. All entries are in dollars. The slope of the aggregate expenditure function is Select one: a. -0.10. b. 0.60. O c.0.10. O d. 0.70