Consider an economy experiencing an increase of autonomous consumption by $100 million. In this economy where the MPC is 0.7, the proportional tax rate is 0.25 and the marginal propensity to import is 0.2, the final impact on equilibrium GDP is: a. . S333 million O b. $210 million O c. $67.5 million O d. $235 million O e. $148 million