Which of the following is a key responsibility of RIC during an incident?

The key responsibility of the Rapid Intervention Crew (RIC) during an incident is to locate lost personnel. RIC is specifically trained and organized for the purpose of aiding firefighters who may become trapped or lost within a dangerous environment. Their primary mission is to ensure the safety of team members and facilitate their safe retrieval. This includes conducting search operations and deploying rescue techniques effectively to regain contact with and recover any personnel in distress.

The other elements mentioned, such as leading the fire attack, monitoring the health of the incident commander, or assessing structural integrity, are typically roles assigned to other components of the incident command structure rather than the RIC. These responsibilities focus on incident management and overall team coordination, but the RIC's specialized training and focus make their most critical function the safety and recovery of firefighters in peril.