The point is inevitably reached where an individual derives less extra enjoyment from the extra units of any good. This is mainly well-suited with: (i) Supply curves that slope-up and to right. (ii) Concave (or bowed out) production possibilities frontiers. (iii) The law of diminishing returns. (iv) Adam Smith’s principle of the satiation. (v) Law of comparative consumer benefit.
Choose the right answer from the above options.