Which company pioneered the 'razor-and-blades' business model, selling the main product at a loss to profit from necessary consumables?

In the world of retail and product innovation, pricing strategies can make or break a product's success. One particularly revolutionary approach changed an entire industry by making advanced technology accessible to the masses through an unexpected business model. Test your knowledge about this game-changing pricing strategy that transformed both consumer behavior and market dynamics!

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King C. Gillette with his safety razor (1900s)
Thomas Edison with phonographs and records (1890s)
George Eastman with Kodak cameras (1880s)
Alexander Graham Bell with telephones (1870s)