Which food retail innovation first allowed customers to view and select their own groceries rather than requesting items from a clerk behind a counter?

In the evolving landscape of food retail, certain innovations have fundamentally transformed how consumers purchase groceries and food products. This trivia question explores a pivotal moment in food retail history that changed consumer behavior and industry standards. Test your knowledge about the evolution of food shopping experiences and the technological developments that have shaped modern grocery retail.

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Piggly Wiggly's self-service store model (1916)
A&P's supermarket concept (1930)
Kroger's shopping cart introduction (1937)
Safeway's pre-packaged food system (1922)