What does LED stand for?

A. Light Emission Diode
B. Light Emitting Diode 
C. Low Energy Device
D. None of these

🧠 Explanation:

LED stands for Light Emitting Diode, a device that lights up when electricity passes through it. It’s used in screens, bulbs, and indicators. In Pakistan, LEDs are common in TVs, phones, and energy-saving lights. They’re important because they’re efficient and long-lasting, saving electricity and reducing costs in homes and businesses.