What is unique about Rescue 3 in terms of its location?

The uniqueness of Rescue 3 lies in its role as the District Headquarters. This designation means that it serves as the central operational hub for a specific area within the airport's emergency response strategy. Being the District Headquarters, Rescue 3 is critical for coordinating rescue and firefighting operations effectively, and it is strategically positioned to ensure rapid response to emergencies within its jurisdiction.

The other choices highlight different aspects of location or function that may not underscore the significance of Rescue 3's operational role. For instance, stating that it is located on the south side of the airfield is a matter of geographical positioning, while indicating that it is the furthest from the terminal area addresses distance without emphasizing emergency response capabilities. The intersection of TWY C and TWY C PAD provides a specific location but does not reflect the broader implications of the facility's administrative and operational importance. Thus, the distinction as the District Headquarters reflects its critical function within the airport's infrastructure.