The correct option is Formal Sector.
Explanation
The economy is broadly classified into the organized (formal) and unorganized (informal) sectors based on the nature of employment, adherence to government regulations, and the provision of social security. The presence of institutional mechanisms for worker representation is a key differentiator between these sectors.
Option Analysis
- Formal Sector (Correct): This sector comprises enterprises registered with the government and subject to labor laws such as the Factories Act and the Industrial Disputes Act. Workers in this sector enjoy job security, social security benefits, and the legal right to form and join trade unions to safeguard their interests through collective bargaining.
- Informal/Unorganized Sector (Incorrect): This sector consists of small, scattered units that are largely outside the control of the government. Employment is often casual, irregular, and low-paid. Due to the lack of formal contracts and legal protection, trade unions are generally absent or ineffective.
- Agricultural Sector (Incorrect): In India, agriculture is predominantly part of the unorganized sector. While some plantation workers (organized agriculture) may have unions, the vast majority of agricultural laborers are unorganized and lack union representation.
Key Takeaway
Trade unions are a characteristic feature of the Formal (Organized) Sector, serving as a tool for collective bargaining and the enforcement of labor rights guaranteed by statutory laws.