Question: In 3GPP-defined Lawful Interception (LI) for group communications, what capability is provided by the data structures defined for Control Commands (CC) for Group Call and Selective Distribution Services Encryption (GCSE)?
Option 1: Reporting of combined media streams for all users in group communications
Option 2: Reporting of separate media streams for each user in group communications
Option 3: Encryption of individual media streams without reporting capabilities
Option 4: Decryption of group call media streams for interception purposes
Explanation: This is correct because the data structures, as defined by the 3GPP standards for Lawful Interception in the context of GCSE, are specifically noted to allow for the reporting of separate media streams. This capability is crucial for effective lawful interception, enabling the differentiation and monitoring of individual user communications within a group setting.