Allocative efficiency can be defined as: a. The difference between the total profit change and the profit-linked productivity change. b. The point at which, for any mix of inputs that will produce a given output, no more of any one input is used than is absolutely necessary. c. Producing outputs efficiently, using the least quantity of inputs possible. d. The point at which technical and price efficiency are achieved. e. The least-cost, technically efficient mix of inputs.