Concept:The 3R principle stands for Reduce, Reuse, and Recycle. These three actions help minimize waste and conserve natural resources.Explanation:Reduce means cutting down the amount of waste we produce. Reuse involves using items again instead of throwing them away. Recycle means converting waste into new materials. Together, they form a simple yet effective guideline for eco-friendly waste management. Individuals following these steps can significantly lower environmental impact and limit the use of non‑renewable resources.Answer:Option B: Reduce, Reuse, Recycle