12. Use the production possibility curve (PPC) to answer the question. Zambia is currently on PPC1, then point.will be an efficient use of resources, while point...will be unattainable. Production possibility Curve for Zambia Milk a) E.B b) CD c) AF d) DC 12. Use the production possibility curve (PPC) to answer the question. Zambia is currently on PPC1, then point.will be an efficient use of resources, while point...will be unattainable. Production possibility Curve for Zambia Milk a) E.B b) CD c) AF d) DC