Table shows the production possibilities for the country XYZ: Food Sunscreen (Kilograms per month) (litres per month) 100 200 in 300 400 (i) Draw a Production Possibility Frontier (PPF). (ii) How does the PPF illustrate scarcity? (iii) How does the PPF illustrate production efficiency? (iv) How does the PPF show that every choice involves a tradeoff? (v) How does the PPF illustrate opportunity cost