Consider an economy described by the following: C = $3.2 trillion f = 1 1 = $1.4 trillion mpc = 0.7 G = $3.5 trillion d = 0.3 7 = $3 trillion X = 0.1 NX = $ -0.5 trillion\fThe simplified expression for the net export function is: O A. NX= - 1.1-0.7r. O B. NX= -0.7-0.1r. O C. NX= -0.1 -0.5r. O D. NX= - 0.5-0.1r.\fIf the real interest rate is r= 2, equilibrium output y = $ trillion. (Round your response to one decimal place.) If the real interest rate is /= 5, equilibrium output Y = $ trillion. (Round your response to one decimal place.) If government purchases increase to $4.2 trillion and the real interest rate /= 2, equilibrium output Y = $ trillion. (Round your response to one decimal place.) If government purchases increase to $4.2 trillion and the real interest rate =5, equilibrium output Y = $ trillion. (Round your response to one decimal place.)