Which retail chain is credited with pioneering the first true self-service grocery store concept in 1916, fundamentally changing how consumers shopped?

The retail industry has undergone numerous transformations throughout history, with some innovations completely changing how consumers shop. One such revolutionary concept was self-service shopping, which eliminated the need for clerk assistance for every purchase. This seemingly simple change in retail strategy dramatically altered store layouts, consumer behavior, and eventually led to the supermarket format we know today. Test your knowledge about this pivotal retail innovation!

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Piggly Wiggly
A&P (The Great Atlantic & Pacific Tea Company)
Safeway
Kroger