Explanation
The correct answer is (A) Repair.
The 3R approach refers to Reduce, Reuse, and Recycle, which are key strategies for managing waste and promoting sustainability. Repair, although an important concept in waste management and resource conservation, is not typically included as part of the 3R approach. The 3R approach focuses on minimizing waste generation through reduction, maximizing the use of products through reuse, and promoting the recycling of materials to minimize the extraction of new resources. While repair can be considered a form of reuse, it is not commonly included as one of the core components of the 3R approach.