What product was the first ever to be scanned with a barcode in a retail transaction?

In the history of retail technology, few innovations have had as profound an impact as the barcode. This simple series of lines revolutionized inventory management, checkout processes, and the overall shopping experience. But do you know when this game-changing technology first made its commercial debut? Test your knowledge of this pivotal moment in retail history!

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A 10-pack of Wrigley's Juicy Fruit gum
A carton of Marlboro cigarettes
A bottle of Coca-Cola
A loaf of Wonder Bread