What should be lifted as part of the termination checklist?

Answer: A — The detour or alternate route

The appropriate item to be lifted as part of the termination checklist is the detour or alternate route. Ending an incident effectively involves ensuring that normal traffic flow can be restored as quickly as possible, which includes removing any detours or alternate routes that were established during the incident. This step helps to prevent confusion and ensures that drivers can return to their normal routes without the constraints placed by the detour. Additionally, while various other elements like incident command posts, temporary barricades, and emergency response vehicles are involved in the incident management process, lifting those alone does not directly address the need to reinstate normal traffic operations. Removing the detours is crucial for re-establishing the regular traffic pattern and concluding the incident response successfully.