Correct Option: B  [ 3 only ]
Remark:
Explanation: The star rating system seen on electrical appliances (like ACs, refrigerators, and fans) represents the energy efficiency of the product. It is issued by the Bureau of Energy Efficiency (BEE), under the Ministry of Power, Government of India. The more the number of stars (up to 5), the higher the energy efficiency — meaning the appliance consumes less electricity for the same performance. However, the star rating does not indicate the lifespan or the quality checks of the appliance.