What type of equipment is commonly used to merchandise meat and cheese?

The correct choice is the display case, which is specifically designed for merchandising meat and cheese in a retail environment. A display case offers a case that not only stores products at the proper temperature but also allows for visibility and accessibility, encouraging customers to make purchases. The design typically includes features that enhance product presentation, such as lighting and clear fronts, making it an ideal choice for showcasing these items attractively while ensuring they remain fresh and appealing.

The other options serve different purposes. Refrigerated trucks are vital for transporting perishable goods but are not used for merchandising in-store. A cooler unit provides cold storage and is essential for maintaining product freshness but does not offer the merchandising aspect required for direct customer engagement. The Carlson system, while relevant in some contexts, does not specifically pertain to the display and merchandising of meat and cheese products in a consumer-facing manner.