Question: What is the primary purpose of transferring 'encryption parameters (keys and associated parameters for decrypting CC)' from the PDN-GW/S-GW or HSS to the DF2 in the context of lawful interception?
Option 1: To ensure the confidentiality of intercepted communications between the Law Enforcement Agency and the DF2.
Option 2: To enable the DF2 to decrypt intercepted packet data for analysis, if necessary.
Option 3: To facilitate secure communication between the target UE and the PDN-GW/S-GW.
Option 4: To authenticate the identity of the target UE in the network.
Explanation: The transfer of encryption parameters is crucial for the DF2 to perform lawful interception. This enables the DF2, if necessary, to decrypt intercepted packet data for analysis as per lawful interception requirements, relating to accessing and interpreting encrypted communications in telecom networks.