Final answer:
The sequence of responders to notify until an incident is acknowledged is defined by the Incident Commander. They manage all incident activities and ensure that communication is maintained with all necessary parties.
Step-by-step explanation:
The correct answer is a) Incident Commander. The sequence of responders to notify until an incident is acknowledged is defined by the Incident Commander. This role is responsible for managing all incident activities, including the development of strategies, tactics, and assigning resources. The Incident Commander is often at the top of the response hierarchy and ensures communication flows to all necessary parties. Once the commander acknowledges the incident, a systematic process begins to address and mitigate the incident.
Incident Severity refers to the level of impact or potential impact of an incident on operations and is used to prioritize the incident response activities. An Incident Report is a document that records the details of an incident, such as the time of occurrence, who was affected, what happened, and the initial response actions taken. Finally, Incident Acknowledgment is the confirmation that the incident has been noticed and is being acted upon by the responsible parties.