Which inventory tracking innovation, first commercially used in 1974 on a pack of Wrigley's gum, revolutionized retail supply chain management and is now scanned over 6 billion times daily worldwide?

In the world of inventions and discoveries, some product innovations transform not just their own industry, but revolutionize supply chain management worldwide. This poll tests your knowledge of a pivotal invention that fundamentally altered how products are tracked, inventoried, and sold across the globe. While seemingly simple, this technology enabled the modern retail revolution and created the foundation for today's sophisticated inventory management systems.

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• The Universal Product Code (UPC) barcode
• Radio-Frequency Identification (RFID) tags
• Quick Response (QR) codes
• Near Field Communication (NFC) chips

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