Question: What is the primary purpose of the Npcf_AMPolicyControl_UpdateNotify service operation in the 5G System (5GS)?
Option 1: To provide updated Access and Mobility (AM) related Policy information to the NF Service Consumer, e.g., AMF.
Option 2: To request AM Policy Association termination from the NF Service Consumer.
Option 3: To retrieve Access and Mobility related information from the NF Service Consumer.
Option 4: To notify the NF Service Consumer of changes in the charging control framework.
Explanation: The Npcf_AMPolicyControl_UpdateNotify service operation is used to provide updated AM related Policy information for the AM Policy Association to the NF Service Consumer, such as the AMF. This notification corresponds to an implicit subscription and includes inputs like AM Policy Association ID and optional Access and Mobility related information or indication of AM Policy Association termination.