Which of the following is an appropriate action when a fire alarm is activated?

Evacuating the building immediately when a fire alarm is activated is the appropriate action because it prioritizes the safety of all occupants. Fire alarms are designed to alert individuals to potential danger, and responding promptly to these alarms can prevent injuries or fatalities. Immediate evacuation ensures that everyone has the opportunity to exit the building safely and follow any established evacuation procedures.

Ignoring the alarm or continuing to work can lead to disastrous consequences, as there may be a real threat that requires immediate attention. Calling for a fire truck is also not necessary at that moment; often, the alarm system is already connected to emergency services, and trained personnel will respond accordingly. Following the evacuation procedures is crucial in maintaining a safe environment during an emergency.