Step 1: Understanding secondary activities.
Secondary activities are those that involve manufacturing, processing, or construction. These activities transform raw materials into finished products, such as industries, factories, and cottage industries.
Step 2: Identifying the non-secondary activity.
Hunting is a primary activity, as it involves direct use of natural resources without any processing or manufacturing. In contrast, manufacturing, processing, and cottage industries belong to the secondary sector.
Step 3: Conclusion.
Therefore, the correct answer is (A) Hunting, as it is a primary activity and not a secondary one.