Can someone know how to do this

Types of Production A B C D m Guns 0 10 20 30 40 Butter 100 75 50 25 0 1. Graph the above data into a production possibilities frontier graph. Make sure to connect your points into a curve. Use x for guns and y for butter. 2. On your graph place point R where it would be inefficient. 3. What is the opportunity cost of moving from Point A to Point B? 4. What is the opportunity cost of moving from Point C to Point E