The production possibility curve (PPC) indicates how many hours each day a student can spend on either entertainment or revision. At present, the student revises for 3 hours a day. As the exams get closer, the student chooses to revise for 9 hours a day. What opportunity cost results from this decision?
- A3 hours of revision
- B6 hours of entertainment
- C6 hours of revision
- D9 hours of entertainment