Which pioneering retail analytics invention, discovered in the 1990s and now used by most major retailers, first enabled businesses to identify individual shopping patterns through purchase history?

The world of retail was transformed by the development of sophisticated data analytics tools. These inventions have allowed businesses to understand customer behavior in unprecedented ways, leading to personalized shopping experiences and targeted marketing strategies. Test your knowledge about a groundbreaking retail analytics innovation that fundamentally changed how businesses understand their customers.

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Customer Loyalty Cards with unique identifiers
Facial recognition cameras at store entrances
RFID tracking tags on shopping carts
Bluetooth-enabled mobile receipt scanners