Question: What is the primary purpose of the BM-SC Membership Function in the context of Multimedia Broadcast/Multicast Service (MBMS)?
Option 1: To manage the Quality of Service (QoS) for MBMS bearers across the network.
Option 2: To provide authorization for User Equipment (UE) requesting to activate an MBMS service.
Option 3: To exclusively handle charging records for unicast services over LTE networks.
Option 4: To optimize broadcast content based on user location and device capability.
Explanation: The correct answer, Option 2, highlights the BM-SC Membership Function's role in authorizing UEs for MBMS service activation. This is crucial for controlling access to multicast/broadcast services, ensuring only subscribed or permitted users can join. The other options are incorrect because managing QoS (Option 1) is not its primary function, it doesn't exclusively handle unicast charging over LTE (Option 3), and optimizing broadcast content based on user/device specifics (Option 4) isn't mentioned as a responsibility of the Membership Function.