Question: What is the primary purpose of the Rule-Deactivation-Time AVP in Policy and Charging Control (PCC) for all access types?
Option 1: To specify the NTP time for PCEF to start enforcing a new PCC rule.
Option 2: To indicate the duration for which a PCC rule should be enforced by the PCEF.
Option 3: To inform the PCEF of the NTP time at which it must stop enforcing a specific PCC rule.
Option 4: To request the PCEF to periodically update its PCC rules based on a specified timer.
Explanation: The Rule-Deactivation-Time AVP is crucial for managing the lifecycle of PCC rules. By specifying the exact NTP time for deactivation, it ensures that the Policy and Charging Enforcement Function (PCEF) can precisely control when to stop enforcing a particular rule, aligning with dynamic network policy adjustments and service requirements.