Question: What is the requirement for a User Equipment (UE) to support MBMS Service Continuity, given that the UE already supports MBMS?
Option 1: Mandatory for all UEs supporting MBMS to ensure seamless service.
Option 2: Conditional, based on the UE's capability to handle simultaneous unicast and multicast transmissions.
Option 3: Dependent on the network operator's configuration of the RRC protocol.
Option 4: Optional, as it is not a compulsory feature for UEs that support MBMS.
Explanation: The correct answer is Option 4 because supporting MBMS Service Continuity is explicitly stated as optional for UEs that already support MBMS, indicating flexibility in device capabilities based on manufacturer or operator preferences.