Which retail technology innovation most dramatically changed grocery shopping behavior in the past three decades?

Modern grocery stores are technological marvels designed to influence consumer behavior through strategic layouts, product placements, and digital innovations. This trivia challenges your knowledge about a revolutionary retail technology that fundamentally changed food shopping patterns and consumer behavior. Can you identify which innovation had the most profound impact on how customers interact with food products and make purchase decisions?

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Self-checkout kiosks
Digital loyalty programs with personalized offers
UPC barcodes and scanning systems
Digital menu boards in deli/prepared foods sections