Which American grocery chain is credited with inventing the modern supermarket concept in 1916 by introducing the revolutionary self-service shopping model?

Before the supermarket era revolutionized how we shop for food, grocery retail looked very different. The introduction of self-service grocery shopping transformed food retail forever, creating the foundation for today's massive food industry. This poll tests your knowledge about a pivotal moment in food retail history that changed how consumers interact with food products and shaped modern shopping behaviors we take for granted today.

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