Question: What happens when a UE initiates de-registration for both 3GPP access and non-3GPP access in the same PLMN?
Option 1: The UE will only follow the de-registration procedure for 3GPP access.
Option 2: The UE will only follow the de-registration procedure for non-3GPP access.
Option 3: The UE will follow the descriptions for UE-initiated de-registration procedure completion for both 3GPP access and non-3GPP access.
Option 4: The UE will ignore the de-registration request.
Explanation: When a UE initiates de-registration for both 3GPP access and non-3GPP access in the same PLMN, it needs to follow the procedures for both accesses. This ensures that the UE is properly de-registered from both networks, allowing for efficient resource management and minimizing potential conflicts or errors.