Which retail innovation is credited with creating the first true 'self-service' grocery shopping experience in 1916, fundamentally changing how consumers interact with food products?

The way we shop for food has transformed dramatically over the decades. Modern supermarkets emerged as a revolutionary concept that changed consumer behavior forever. Test your knowledge about a pivotal moment in food retail history that shaped how billions of people around the world purchase their groceries today. Do you know which innovation truly revolutionized the food shopping experience?

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Piggly Wiggly's revolutionary store layout that allowed customers to select their own items without clerk assistance
A&P's introduction of standardized pricing across all store locations
Safeway's implementation of refrigerated display cases for perishable foods
Kroger's invention of the shopping cart with multiple baskets