Consider a simple macro model with a constant price level and demand-determined output. The equations of the model are: C = 150 + 0.84Y, / = 400, G = 700, T = 0, X = 130, IM = 0.08Y. Desired consumption expenditure at equilibrium national income is Select one: O a. 4980.00. O b. 1675.44. O c. 6815.40. O d. 4830.00. O e. 4060.04