Who among the following scientists invented Kevlar?

The correct answer is Option (3) - Stephanie Louise Kwolek

Stephanie Louise Kwolek was the scientist who invented Kevlar. She was a chemist at DuPont and developed Kevlar in 1965. Kevlar is a strong and heat-resistant synthetic fiber widely used in various applications, including bulletproof vests, helmets, and other protective gear. Kwolek's discovery of Kevlar has had a significant impact on multiple industries, particularly in enhancing safety and security measures.