Which retail invention, introduced in the 1990s, revolutionized customer loyalty tracking and personalized marketing by allowing merchants to collect and analyze individual shopping patterns?

The history of retail has been transformed by technological inventions that changed how we shop forever. Some innovations created entirely new shopping experiences, while others enhanced existing retail frameworks. This poll tests your knowledge about a groundbreaking retail technology that revolutionized customer loyalty programs and personalized shopping experiences. Can you identify which technology truly changed the retail landscape?

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Radio Frequency Identification (RFID) tags
Electronic loyalty cards with magnetic stripes
Barcode scanning mobile applications
Near Field Communication (NFC) payment systems