The portion of the economy concerned with manufacturing useful products through processing, transforming, and assembling raw materials is called what?

• A. Primary Sector
• B. Tertiary Sector
• C. Quaternary Sector
• D. Secondary Sector

Answer: (D)

The question tests understanding of how the economy is divided into sectors by the type of activity. The described activity—processing, transforming, and assembling raw materials into useful products—is manufacturing. That is the core function of the secondary sector, which covers factories and production that turn inputs from the primary sector into finished goods.

To place it in context: the primary sector focuses on extracting natural resources, the tertiary sector covers services such as retail and transportation, and the quaternary sector deals with information, research, and knowledge-based activities. So the described portion of the economy fits best with the secondary sector.