The correct option is 2 only.
Explanation
The Production Possibility Frontier (PPF) represents the maximum possible combinations of goods that an economy can produce using given resources and technology, under the assumption of full and efficient utilisation of resources.
Statement-wise Analysis:
- Statement 1 - Incorrect. The PPF is drawn under the assumption of full employment of resources; situations of unemployed or underutilised resources are represented by points inside the PPF, not on it.
- Statement 2 - Correct. Under full employment, producing more of one good necessarily involves sacrificing some quantity of another good, reflecting the concept of opportunity cost.
Key Takeaway: The PPF illustrates opportunity cost under conditions of full and efficient use of resources, not situations of unemployment.