Which retail innovation, introduced in 1916 by Clarence Saunders, revolutionized grocery shopping by allowing customers to select their own merchandise rather than requesting items from clerks?

Test your knowledge of retail history! The modern shopping experience we take for granted today evolved through fascinating innovations and bold entrepreneurs who transformed how we buy and sell goods. This question explores a pivotal moment in retail history that fundamentally changed consumer behavior and set the stage for today's shopping landscape. Do you know your retail pioneers?

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Piggly Wiggly (the first true self-service grocery store)
A&P Economy Stores (the first grocery chain with standardized pricing)
King Kullen (the first supermarket with departmentalized sections)
Safeway Stores (the first grocery chain with refrigerated displays)