If employees are to be removed from a hazardous area, who is to remain?

The correct answer is that personnel involved in addressing the hazard should remain in a hazardous area while others are evacuated. This is crucial because these trained individuals are responsible for managing and mitigating the hazard, ensuring that they can implement safety measures and take appropriate action to protect themselves and others. Their knowledge and expertise are essential in handling the situation effectively, whether it's to contain a spill, control a fire, or address other emergency conditions.

The other options do not align with best practices for safety management in hazardous areas. Senior officials may not have the specific training or tools necessary to address the immediate hazard, so their presence does not contribute to safety efforts in a crisis. While safety officers play a key role in risk management, they may not be directly involved with the specific hazard at hand. Lastly, evacuating everyone is often not feasible; necessary personnel must remain to safely address any issues while ensuring that the area is secure and that appropriate response plans are activated.