b) King C. Gillette

King C. Gillette introduced the first practical safety razor in 1901, revolutionizing the way men shave. Prior to Gillette’s invention, shaving was commonly done with a straight razor, which required skill and was often dangerous. Gillette’s safety razor featured a thin, disposable blade in a metal handle, making shaving safer, easier, and more accessible to the average person. This innovation not only transformed personal grooming habits but also laid the foundation for the disposable consumer goods industry. Gillette’s vision of a disposable razor blade was a significant departure from the reusable products of the time and represented a new business model that would influence various industries.