Which groundbreaking retail innovation, introduced in 1995, is considered the first widespread commercial application of modern customer analytics?

The world of retail has been transformed by technological innovations that help businesses understand their customers better. One of the most significant developments has been the evolution of customer analytics systems. These innovations have revolutionized how retailers make decisions, personalize experiences, and predict consumer behavior. Test your knowledge about a pivotal moment in retail customer analytics history!

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Amazon's Item-to-Item Collaborative Filtering recommendation engine
Walmart's Retail Link supplier database system
Target's Guest ID predictive analytics program
Best Buy's Reward Zone customer loyalty analytics