An Automated External Defibrillator (AED) is available on site. What is the security guard's role if an individual collapses and appears to be in cardiac arrest?

1. Place the individual in the recovery position and monitor their breathing until help arrives.
2. Only apply the AED if the individual is confirmed to have no pulse and is not breathing.
3. Immediately call EMS, commence CPR if trained, and retrieve/apply the AED as soon as possible, following its voice prompts.
4. Wait for trained medical personnel to arrive before attempting to use the AED.