Question: What is the priority order for message throttling in GTP-C entities based on procedure categories?
Option 1: UE session mobility, miscellaneous session management procedures, release of PDN connection or bearer resources, request for new PDN Connection or bearer resources.
Option 2: Release of PDN connection or bearer resources, UE session mobility, miscellaneous session management procedures, request for new PDN Connection or bearer resources.
Option 3: Miscellaneous session management procedures, UE session mobility, release of PDN connection or bearer resources, request for new PDN Connection or bearer resources.
Option 4: UE session mobility, release of PDN connection or bearer resources, miscellaneous session management procedures, request for new PDN Connection or bearer resources.
Explanation: According to the text, the correct order is: (1) UE session mobility within and across 3GPP or non-3GPP access, (2) Release of PDN connection or bearer resources, (3) Miscellaneous session management procedures, and (4) Request for new PDN Connection or bearer resources. This order reflects the decreasing priority levels, with category 1 having the highest priority.