Which of the following items must residential tenants ensure remains safe to operate?

Residential tenants have a responsibility to ensure that small electrical items remain safe to operate because these items can pose significant safety risks if they are damaged or malfunctioning. Electrical appliances and devices, when in poor condition, can lead to hazards such as electrical fires, short circuits, and electrocution. It is vital for tenants to regularly check their small electrical items for signs of wear and to ensure that they are used in accordance with safety guidelines. This includes avoiding overloading circuits and ensuring that any extension cords or power strips are not damaged.

On the other hand, items like furniture, personal belongings, and essential documents, while they may have inherent value, do not directly impact health and safety in the same way as electrical items do. Responsibility for the safe operation of items like furniture typically falls under the landlord's obligation to maintain common areas and ensure structural safety rather than the specific operational safety of personal items. Therefore, maintaining the safety of small electrical items is crucial for preventing dangerous incidents in a residential setting.