Which retail technology innovation, first used commercially in 1974 on a pack of Wrigley's gum, is now scanned over 6 billion times daily worldwide?

In the world of retail innovations, technological breakthroughs have transformed how we shop. From humble beginnings to sophisticated systems, retail technology has evolved dramatically over the decades. This poll tests your knowledge about a pivotal invention that revolutionized inventory management and checkout processes worldwide, forever changing the retail landscape and enabling countless innovations that followed.

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Universal Product Code (UPC) barcode
Radio-frequency identification (RFID) tag
Electronic article surveillance (EAS) tag
Near-field communication (NFC) chip