Which incident response option reflects a comprehensive, all-inclusive step within the lifecycle?

• A. Preparation
• B. Identification/Detection
• C. All of the above
• D. Containment

Answer: (D)

Incident response is a sequence of distinct steps that together cover the whole process from start to finish. To be comprehensive means acknowledging every phase needed to fully handle an incident: preparation, identification/detection, containment, eradication, recovery, and lessons learned. The option that includes all these phases is the best choice because it reflects how effective incident response requires coordinated action across the entire lifecycle, not just a single stage. Containment, while crucial, aims to stop the spread and limit damage and does not by itself address removing the threat, restoring systems, or learning from the event, so it isn’t all-inclusive.