If the safety officer notices an unsafe activity at an emergency, the safety officer should:

• A. consult with the Incident Commander.
• B. stop the activity immediately.
• C. call the Incident Commander on the radio.
• D. report the activity to the highest rank.

Answer: (B)

When an unsafe activity is spotted during an emergency, the very first action is to stop the activity immediately. This minimizes exposure, prevents further harm, and lets responders reassess the situation before anything more is done. The safety officer’s top priority is to remove the immediate danger, and halting the action achieves that right away.

After the hazard is halted, informing the Incident Commander and coordinating next steps is important, but delaying the stop to do so increases risk. The other options involve communication or reporting steps, which are essential but should come after the immediate stop to prevent harm.