The correct option is A-1, B-4, C-2, D-3
Explanation
The economy is structurally divided into three main sectors based on the nature of the economic activity performed. These sectors represent the flow of value addition from natural resources to final services.
Analysis of Pairs:
- Primary Sector (A & D): This sector involves the direct extraction, harvesting, or utilization of natural resources.
- Poultry Farming (1): This is an agricultural and allied activity involving the rearing of birds for food. It is a direct biological process utilizing natural resources.
- Mining (3): This involves the extraction of minerals and ores from the earth. Since it deals with raw natural resources without processing them into new goods, it is classified as a primary activity.
- In standard industrial classifications (such as NIC), Agriculture (Poultry) usually precedes Mining. Therefore, A is matched with 1 and D with 3.
- Secondary Sector (B): This sector transforms raw materials produced in the primary sector into finished goods.
- Manufacturing (4): This is the core of the secondary sector, involving the industrial processing of materials into tangible products.
- Tertiary Sector (C): This sector provides services that support the other sectors and consumers.
- Tourism (2): This is a service industry that provides accommodation, recreation, and travel services, falling squarely within the tertiary sector.
Conclusion: The correct matching sequence is A-1, B-4, C-2, D-3.
Key Takeaway:
The Primary Sector includes agriculture, mining, and fishing (raw materials); the Secondary Sector includes manufacturing and construction (processing); and the Tertiary Sector includes services like tourism, banking, and transport.