Final answer:
The correct term to complete the sentence is 'stove,' which is the main appliance used for cooking in the kitchen.
Step-by-step explanation:
The sentence should be completed to read: The stove of a kitchen is where the actual cooking is done. The stove is the primary appliance used for cooking food through methods such as baking, boiling, frying, and grilling. Unlike the other options listed, the pantry is typically a storage area for food and other necessities, the dining area is where people sit to eat meals once they are prepared and ready to serve, and the prep station is where ingredients are prepped before cooking, but the actual cooking process occurs at the stove.