Which retail invention, first used commercially in 1974 on a pack of Wrigley's gum, has saved the industry billions in inventory management costs?

The retail landscape has been transformed by groundbreaking inventions and discoveries throughout history. From the humble barcode to sophisticated AI-powered shopping experiences, technological innovations have revolutionized how products are sold, tracked, and marketed. This trivia question tests your knowledge about a pivotal invention that changed retail forever and created the foundation for modern commerce tracking systems.

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Universal Product Code (UPC) barcode
Electronic Article Surveillance (EAS) tags
Radio-frequency identification (RFID) chips
Electronic point-of-sale (EPOS) system