Question: What is the primary purpose of the Nnef_AMInfluence_Notify operation in the 5G System?
Option 1: To request AM influence data from the AF.
Option 2: To forward notification of change of service coverage event report to the AF.
Option 3: To provide event information to the AF for policy and charging control.
Option 4: To execute an operation based on the AF Transaction Id.
Explanation: The Nnef_AMInfluence_Notify operation is used to forward notification of change of service coverage event report to the AF, as indicated by the description in the provided text. This operation allows the network to inform the AF about changes in service coverage, enabling the AF to make informed decisions regarding policy and charging control.