Question: What is an additional capability of relay selection within a Public Identity Number (PIN) in the 5G system, as per service requirements?
Option 1: Only supports User Equipment (UE) for PIN direct connections
Option 2: Exclusively designed for non-3GPP devices to access target PIN Elements
Option 3: Enables both UEs and non-3GPP devices to select a relay for PIN direct connection, supporting additional selection criteria
Option 4: Disables relay selection for all devices within a PIN for security enhancements
Explanation: The correct answer highlights the inclusive nature of the 5G system's relay selection mechanism. By supporting both UEs (User Equipment) and non-3GPP devices, the system ensures broad compatibility and flexibility in establishing direct connections within a Public Identity Number (PIN). This dual support, coupled with additional selection criteria, enhances the system's versatility and usability across different device types, aligning with the service requirements for an adaptable 5G environment.