Question: When a PCRF notifies a TSSF about a `UE_IP_ADDRESS_ALLOCATE` event, which of the following AVPs must also be provided within the Event-Report-Indication AVP?
Option 1: Request-Type AVP
Option 2: Framed-IP-Address AVP
Option 3: Event-Trigger AVP
Option 4: IP-CAN-Type AVP
Explanation: According to the procedure for handling `UE_IP_ADDRESS_ALLOCATE` events, when the PCRF informs the TSSF about such an event, it is required to include the `Framed-IP-Address AVP` within the `Event-Report-Indication AVP`, providing the newly allocated UE IPv4 address to apply relevant Access and Mobility (ADC) rules to associated user plane traffic.