Which of the following describes a major appliance?

A major appliance is typically characterized by its size, complexity, and the significant role it plays in household tasks, particularly related to food storage, preparation, or cooking. A refrigerator-freezer stands out as a major appliance because it is a large, built-in unit that serves essential functions in preserving perishable food and allowing for long-term food storage.

This appliance plays a critical role in food safety and preservation, making it integral to daily culinary operations. Its capacity to hold various food items and its energy requirements contribute to its classification as a major appliance, distinguishing it from smaller, portable appliances that serve more limited purposes.

In contrast, the other options represent small kitchen appliances that are designed for specific tasks, typically serving single or limited functions. While they are useful in the kitchen, they do not provide the same broad utility as a refrigerator-freezer, which is central to food management in a household.