Question: What is the primary purpose of the Discovery Group ID in the context of Proximity-based services (ProSe)?
Option 1: To identify a group of Public Safety users affiliated for Group Member Discovery.
Option 2: To authenticate individual User Equipment (UE) devices within a proximity-based service area.
Option 3: To prioritize emergency communications among first responders.
Option 4: To manage Quality of Service (QoS) parameters for ProSe-enabled UEs.
Explanation: The Discovery Group ID is used to identify a group of Public Safety users that are affiliated for Group Member Discovery, allowing them to discover and communicate with each other within proximity-based services.