Which product was the first to be scanned using a barcode scanner in a retail transaction?

The humble barcode transformed retail history by revolutionizing inventory management and checkout processes. This seemingly simple pattern of black and white lines fundamentally changed how stores track merchandise and process sales. Test your knowledge about this pivotal retail innovation that changed shopping forever!

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A pack of Wrigley's Juicy Fruit gum
A carton of Coca-Cola
A loaf of Wonder Bread
A bottle of Heinz ketchup