What are the three groups that refrigerated food-storage products are categorized by?

The correct answer identifies the three main divisions within the refrigerated food-storage product categories. It highlights that Reach-In units, Walk-in units, and Storage warehouses are essential for different scales and types of food storage needs.

Reach-In units are designed for easy access and are commonly found in grocery stores or restaurants, where quick retrieval of refrigerated products is necessary. Walk-in units are larger, typically used for bulk storage, allowing staff to enter the unit to access larger quantities of food items. Lastly, Storage warehouses refer to larger facilities where food products can be stored on a significant scale, often utilizing various refrigeration systems to maintain proper temperatures for food safety.

This classification emphasizes the varying capacities and uses of refrigeration units in the food storage industry, addressing the needs from small to large-scale operations. Other options include elements like display cases or refrigerated trucks, which are more specialized and do not encompass the broad categories of food storage as effectively.