Which technology innovation has been MOST crucial to the success and rapid growth of ghost kitchen operations in the food industry?

The restaurant industry has been transformed by the rise of 'ghost kitchens' - food preparation facilities set up for delivery-only meals with no dine-in option. This innovative business model has revolutionized food retail, creating new opportunities and challenges for restaurateurs. Test your knowledge about this growing trend that's reshaping the food service industry landscape.

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Food delivery apps and online ordering platforms
Automated cooking robots and smart kitchen appliances
Blockchain-based supply chain management
Augmented reality menu visualization