Concept:Construction occupation involves putting together manufactured or raw materials to create physical structures for human use.
Explanation:The question asks which occupation is classified by assembling manufactured products into usable forms.
Assembly of manufactured products like bricks, window frames, and roofing sheets to build houses is a clear example.
Extraction occupation deals with obtaining raw materials from nature.
Manufacturing occupation focuses on producing or processing goods in factories.
Industrial occupation is a broad category that includes all production-related activities.
Therefore, the correct classification is construction occupation.
Answer:B. Construction occupation