Suppose that individual A's utility function is UA=4T C and that individual B's utility function is UB=2T C, where T is pounds of tea and C is pounds of coffee. In the Edgeworth Box with tea in the horizontal axis and coffee in the vertical axis, individual A in the bottom left-hand corner and individual B in the top right-hand corner, Pareto efficient allocations are located on (a) the top horizontal edge and the right vertical edges. (b) the top horizontal edge and the left vertical edges. (c) the bottom horizontal and the right vertical edges. (d) the bottom horizontal and the left vertical edges