What are the required items on a planned land checklist?

On a planned land checklist, testing information and emergency demonstration is crucial because it ensures that all flight attendants are aware of the latest safety protocols and can effectively convey this information to passengers. This preparation is vital in case of an emergency, as it allows the crew to execute safety procedures confidently and efficiently. It helps to ensure that passengers understand the emergency exits, safety equipment, and other essential information that could be lifesaving.

The other options, while they may represent important aspects of flight operations, do not belong to the specific requirements of a planned land checklist. Confirming passenger identities is generally tied to boarding procedures rather than landing; conducting a headcount, although important for passenger safety, typically occurs before landing; and preparing cabin lights, while part of the overall landing preparation, does not encompass the critical aspect of ensuring all safety information is tested and demonstrated.