Question: What is the primary purpose of including the eMLPP (Enhanced Multi-Level Precedence and Preemption) Priority Information Element in an SGsAP message?
Option 1: To indicate the battery life of the User Equipment (UE) to the Visitor Location Register (VLR)
Option 2: To determine the required priority of a Stream Control Transmission Protocol (SCTP) association for the associated SGsAP message
Option 3: To notify the MME about the VLR's support for Circuit-Switched Fallback (CSFB) for non-priority calls
Option 4: To specify the Quality of Service (QoS) parameters for data transmission over the SGs interface
Explanation: The eMLPP Priority IE is used to determine the required priority of an SCTP association, ensuring messages with higher precedence are handled appropriately in the network, especially in emergency or mission-critical scenarios.