Which historic retail innovation first introduced the concept of self-service shopping, where customers could select products themselves rather than requesting items from clerks behind counters?

The retail landscape has evolved dramatically throughout history, with innovations that revolutionized how people shop. From ancient marketplaces to digital commerce, retail history is filled with fascinating turning points that shaped customer experiences and brand development. Test your knowledge about a pivotal moment in retail history that changed shopping forever!

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Piggly Wiggly stores (1916), which created the first true self-service grocery experience with shopping baskets and checkout stands
Marshall Field's department store (1852), which pioneered the 'customer is always right' policy and browsable merchandise displays
Sears Roebuck catalog (1893), which allowed rural customers to select products themselves without visiting physical stores
The Great Atlantic & Pacific Tea Company (A&P) (1859), which standardized grocery pricing and eliminated haggling in retail