Thomas Edison is famous for inventing:

A. Mobile
B. Bulb
C. Computer
D. All of these

🧠 Explanation:

Thomas Edison is renowned for inventing the incandescent light bulb, patented in 1879. His development of a commercially practical bulb revolutionized lighting, making it accessible for households and industries. Edison’s design, using a carbonized filament, improved durability and efficiency, outpacing earlier prototypes. His work extended beyond the bulb, contributing to electrical power systems, including generators and distribution networks. Edison’s innovations laid the foundation for modern electric lighting, transforming daily life and industrial productivity. His legacy as an inventor underscores his profound impact on technology and global infrastructure in the late 19th century.