Which of the following actions is an example of sustainable development?

Correct answer: Using LED bulbs to save energy

The governing concept of sustainable development is meeting present needs while conserving resources and reducing harm for future generations. LED bulbs generally provide required lighting with less electricity than many older lighting technologies. Using them can reduce energy demand and, depending on the electricity source, associated emissions. Option B is therefore the sustainable action. More single-use plastic increases material consumption and waste. Dumping unsorted waste in open areas can pollute soil, water and air, while unplanned construction in forests can damage habitats and biodiversity. Energy-efficient lighting is only one part of sustainability; it should be combined with switching lights off when unnecessary, responsible purchasing and proper waste management.