Which Unit generally ensures that resources are functioning properly during an incident?

The Logistics Unit is primarily responsible for ensuring that all resources, including personnel, facilities, equipment, and materials, are functioning properly during an incident. This unit plays a crucial role in the incident management system by providing the necessary support to operational functions, ensuring that resources are available when and where they are needed. Their responsibilities include procuring and distributing supplies, as well as tracking the status of equipment and personnel to ensure operational effectiveness.

In contrast, the Ground Support Unit focuses on the maintenance and support of ground operations specifically, while the Operations Unit is concerned with the tactical decisions and management of the incident response itself. The Situation Unit typically handles the collection, analysis, and dissemination of information regarding the incident, which supports decision-making but does not directly ensure resource functionality. Thus, the Logistics Unit's comprehensive role in resource management during incidents makes it the correct answer to this question.