Which of the following describes a Primary PSAP?

A Primary Public Safety Answering Point (PSAP) is defined as the first communications center to receive and handle a 9-1-1 call. This is the initial point of contact for a caller in an emergency and is responsible for answering the call, assessing the situation, and dispatching the appropriate emergency services if necessary. The primary PSAP plays a crucial role in emergency response, ensuring that callers receive immediate assistance and that responders are swiftly notified.

In contrast, other choices highlight different functions or characteristics of PSAPs. A secondary PSAP, for example, refers to a facility that receives calls from the primary PSAP, usually when the situation requires specialization or additional resources. Backup locations and dispatch centers for minor incidents serve different purposes in the broader emergency services framework but do not define a Primary PSAP's essential function. Therefore, the definition that best captures the role of a Primary PSAP is that it is the first communications center to answer a 9-1-1 call.