Question: In a mission-critical service scenario, what entity is responsible for authorizing the binding between an MC (Mission Critical) Gateway UE and an MC Gateway Client in non-3GPP devices hosting an MC client?
Option 1: MC Server
Option 2: MC Gateway UE
Option 3: MC Gateway Client
Option 4: Serving and Packet Data Network (PDN) Gateway
Explanation: In mission-critical communications, ensuring secure and authorized connections is paramount. The MC Server acts as a central control point for managing these critical services. By authorizing the binding between the MC Gateway UE and the MC Gateway Client, the MC Server ensures that only approved devices and clients can utilize the MC gateway's resources, thereby maintaining the integrity and security of mission-critical communications. This role aligns with the server's overall responsibility for connection management and authorization in non-3GPP device scenarios.