Name the types of AEDs used by Frontier.

The correct answer identifies the types of Automated External Defibrillators (AEDs) used by Frontier, specifically the FR2 and FRX models. These AEDs are widely recognized for their reliability and user-friendly design, making them suitable for both trained responders and bystanders during emergency situations.

The FR2 model is known for its durability and effectiveness in delivering life-saving shocks during cardiac arrest, while the FRX adds advanced features such as improved shock delivery and ease of use in various environments. This combination of AEDs ensures that first responders are equipped with technology that is both efficient and accessible, maximizing the chances of survival for victims of sudden cardiac arrest.

The other options listed refer to models that do not exist or are not recognized as devices used by Frontier. Hence, they are not relevant to the question about the types of AEDs utilized. Recognizing the correct models is crucial for professionals working with this equipment to ensure they are familiar with the tools they will rely on in emergency situations.