Question: When can the UE initiate the 5GSM procedure?
Option 1: At any time during the 5GMM procedure
Option 2: Only when there is a 5GMM context established at the UE and the AMF
Option 3: Only when the UE is in 5GMM-CONNECTED mode and a service request procedure for re-establishing user-plane resources of PDU session(s) is initiated
Option 4: When the UE determines to locally release the N1 NAS signalling connection upon receiving an SOR transparent container during a registration procedure
Explanation: According to the text, "The UE can only initiate the 5GSM procedure when there is a 5GMM context established at the UE." This indicates that the UE must have an existing 5GMM context before it can start the 5GSM procedure.