The correct answer is
C) Recognition of the emergency and activation of EMS
Step-by-step explanation:
According to the American Heart Association (AHA), the correct order of 5 links in the adult out-of-hospital Chain of Survival are:
1) Recognition of cardiac arrest and activation of the emergency response system
2) Early cardiopulmonary resuscitation (CPR) with an emphasis on chest compression
3) Rapid defibrillation
4) Basic and advanced emergency medical services
5) Advanced life support and post-cardiac arrest care