Hello! I am SUPER confused here. I don't really understand how to use a production possibility curve, especially with a real world example. It'd be great to see a break down of steps if possible! Thank you in advance!!!

Guns G 800 F 700 OA E 400 B D 200 C 0 100 200 260 300 Butter Consider the productions possibilities curve above, showing the tradeoff between the production of guns and (tons of) butter in the fictional island nation of Ishtar. Use it to answer the following questions