Which American entrepreneur is credited with opening the first true self-service grocery store in 1916, revolutionizing retail by allowing customers to select their own merchandise?

Before the 1900s, retail stores operated with clerks fetching products for customers from behind counters. The retail landscape changed dramatically with the introduction of self-service shopping—a revolutionary concept that transformed how people interacted with merchandise. This innovation fundamentally altered store layouts, customer psychology, and the entire shopping experience. Test your knowledge about this pivotal moment in retail history!

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Clarence Saunders (Piggly Wiggly)
Frank W. Woolworth (F.W. Woolworth Company)
Sebastian S. Kresge (S.S. Kresge Company/Kmart)
James Cash Penney (J.C. Penney)