Question: What happens to the PDU sessions of a UE after a 5G-SRVCC handover from NG-RAN to UTRAN?
Option 1: The PDU sessions are transferred to the new network.
Option 2: The PDU sessions are suspended and can be resumed later.
Option 3: The PDU sessions are redirected to a different UE.
Option 4: All the PDU sessions of the UE are locally released at the UE and the network.
Explanation: After a 5G-SRVCC handover from NG-RAN to UTRAN, all the PDU sessions of the UE are locally released at the UE and the network. This is because coordination between 5GSM and SM states is not required, and the UE and network need to release the PDU sessions to ensure a smooth handover process.