Which of the following is NOT a current capability of smart shelf technology in grocery stores?

The grocery industry is rapidly transforming with innovative retail technologies. One of the most significant advancements in recent years has been the development of smart shelf technology, which is revolutionizing inventory management, customer experience, and data collection. Test your knowledge about this cutting-edge retail innovation that's changing how we shop for food!

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Real-time inventory tracking that automatically alerts staff when products need restocking
Dynamic pricing that changes based on product expiration dates and current store traffic
Automatic food quality assessment that detects spoilage through molecular scanning
Personalized product recommendations sent to shoppers' smartphones when near relevant shelves