1.why economics is primarily a subject of making 'decisions' by individuals (households) and businesses (firms). 2. In the economic system, who is the buyer in the Resource Market?Below see the attached production possibilities curve (PPC) for questions 3 to 7. 3. Briefly describe the efficiency of Point D. 4. Briefly describe how Point A could reach the PPC. 5. If society prefers more butter than guns what is the optimum point on the PPC? 6. In the attached PPC diagram, why does increasing opportunity cost occur? 7. Society cannot produce the combine of guns and butter shown by Point X. Briefly explain how society could still consume that combination of guns and butter. Assume no new resources become available such as discovering a new oil field or no new technology.