Which retail analytics innovation, first widely adopted around 2010, allowed physical stores to track customer movements and behavior similar to how online stores track clicks?

In the competitive world of retail, data analytics has transformed how businesses understand customer behavior and make strategic decisions. One innovation in particular revolutionized how retailers track and analyze customer preferences in physical stores, bridging the gap between online and offline shopping analytics. Test your knowledge about this significant development in retail analytics history that changed how businesses approach customer data collection.

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Heat mapping cameras and sensors
RFID loyalty cards
Mobile app geofencing
Facial recognition checkout systems