Question: Upon receiving an RRCEarlyDataComplete message, what action does a UE (User Equipment) take if the message includes redirectedCarrierInfo indicating redirection to GERAN and upper layers indicate that redirect to GERAN without AS security is not allowed?
Option 1: The UE proceeds with the redirection to GERAN, ignoring the AS security requirement.
Option 2: The UE stores the dedicated offset provided by the redirectedCarrierOffsetDedicated for future use.
Option 3: The UE performs actions upon leaving RRC_CONNECTED as specified in the relevant protocol section, with a release cause 'other', ending the procedure.
Option 4: The UE forwards the dedicatedInfoNAS to upper layers and resets MAC configuration without further action on the redirection.
Explanation: This is because if the RRCEarlyDataComplete message indicates redirection to GERAN without meeting AS security requirements, the UE must leave RRC_CONNECTED with a release cause 'other', ending the procedure due to unmet security protocols, prioritizing security before network changes.