Question: What is the purpose of the Namf_Communication_AMFStatusChangeUnSubscribe service operation in the 5G System?
Option 1: To subscribe for AMF Status Change notification.
Option 2: To update the GUAMI(s) information.
Option 3: To unsubscribe for AMF Status Change notification.
Option 4: To retrieve the current status of the AMF.
Explanation: The Namf_Communication_AMFStatusChangeUnSubscribe service operation is used by an NF to unsubscribe for AMF Status Change notification, as indicated in the description. This operation allows the NF to stop receiving notifications about changes to the AMF's status.