Answer: b) on-scene
Explanation:
ICS (Incident Command System) is the unit that supports and recovers the on-scene areas of emergency and incident.They try to manage the situation with the help of equipment, facilities, plans, methods etc.They lay a coordination of people on the emergency scene with the official executive team members
Other options are incorrect because ICS does not provide support ,help and maintenance out of emergency scene or inactive scene.Emergency operation centers provide support along with ICS .Thus, the correct option is option(b).
