Which scientifically-proven principle explains why grocery stores typically place essential items like milk and eggs at the back of the store?

In the intersection of science and retail, consumer psychology drives billions in sales. Scientific research has revealed fascinating insights about how our brains respond to product placement, store layouts, and shopping environments. This trivia question explores a landmark scientific study that changed how retailers approach store design. Test your knowledge about the science behind shopping behaviors!

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The Gruen Transfer Effect - disorienting shoppers to increase browsing time
The Exposure-Distance Theory - maximizing product exposure through forced navigation
The Primacy-Recency Effect - placing memorable items at entry and exit points
The Gestalt Proximity Principle - grouping related items regardless of store layout