Which retail invention, first used commercially in 1974 on a pack of Wrigley's chewing gum, is estimated to have saved retailers worldwide over $1 trillion through improved inventory tracking and checkout efficiency?

In the world of retail innovations and discoveries, some technologies have fundamentally transformed how consumers shop and interact with products. This poll tests your knowledge about a groundbreaking invention that changed the retail landscape forever and revolutionized inventory management, product tracking, and the checkout experience for billions of shoppers worldwide.

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Universal Product Code (UPC) barcode
RFID tag technology
Electronic article surveillance (EAS) tags
Electronic shelf labels (ESL)