Question: Which entity initiates trace recording sessions for a specific User Equipment (UE) on Evolved Universal Terrestrial Radio Access Network (E-UTRAN) interfaces?
Option 1: Serving eNB (eNodeB) based on UE's service profile
Option 2: Target eNB during handover preparation
Option 3: Mobility Management Entity (MME) as part of bearer setup
Option 4: Evolved Packet Core (EPC) for network performance monitoring
Explanation: The initiation of trace recording sessions for a particular UE on E-UTRAN interfaces is triggered by the Evolved Packet Core (EPC), which oversees and manages the overall network's operational aspects, including performance monitoring and troubleshooting.