Which of the following does NOT describe the optimal choice condition for a consumer? Select one: O a. slope of the budget constraint = slope of the indifference curve O b. MRS = Px/Py O c. MU,/Income = MUy/Income O d. MUx/Px = MUy/PyAt the optimum combination of two inputs, which of the following statements are correct 1. the slopes of the isoquant and isocost curves are equal. I1. costs are maximized for the production of a given output. III. the marginal rate of technical substitution equals the ratio of input prices. O a. 1 and II only O b. II and Ill only O d. I and Ill only