Assume: goods x, y; consumers A, M; total endowment of good x equals that of y, A's preference: U=min{x,y}, M's preference: U=max{x,y}. In an Edgeworth Box the set of Pareto-efficient allocations will consist of: a. Two diagonals. b. One of the diagonals. c. The entire diagram (box). d. The diagonals and the outer borders of the diagram (box). e. The outer borders of the diagram (box).