Which retail giant first introduced the revolutionary 'self-service' shopping model in 1916, allowing customers to select their own items without clerk assistance?

Test your knowledge about one of the most significant innovations in retail history that forever changed how consumers shop. This revolutionary concept from the early 20th century transformed the retail landscape and established a foundation for modern shopping experiences that we take for granted today. Do you know which retail innovation first empowered customers to select their own merchandise without clerk assistance?

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Piggly Wiggly
Woolworth's
A&P (Great Atlantic & Pacific Tea Company)
Sears, Roebuck and Co.