Which inventor created the first self-service shopping model in 1916, revolutionizing retail by allowing customers to select their own merchandise without clerk assistance?

The retail landscape has been transformed numerous times through technological innovation. One of the most fundamental shifts came with the introduction of self-service shopping, which completely changed how consumers interact with products before purchase. This innovation set the foundation for modern supermarkets and retail stores as we know them today. Test your knowledge about this pivotal moment in retail history!

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Clarence Saunders with his 'Piggly Wiggly' stores
Richard Sears with the 'Sears Roebuck' catalog system
Michael Cullen with 'King Kullen' supermarkets
Frank Woolworth with his 'Five and Dime' stores