Question: When an SCS/AS requests event monitoring and operator policies indicate PCRF-based monitoring via SCEF, which of the following is a prerequisite for Location Reporting using Access Network Information Report procedures?
Option 1: Support for RAN-NAS-Cause feature
Option 2: Support for NetLoc, NetLoc-Untrusted-WLAN, and/or NetLoc-Trusted-WLAN features
Option 3: Activation of Communication Failure Reporting
Option 4: Establishment of a direct link between SCS/AS and PCRF
Explanation: Location Reporting, as described in the context of Access Network Information Report procedures, specifically requires support for network location features, namely NetLoc, NetLoc-Untrusted-WLAN, and/or NetLoc-Trusted-WLAN. This is crucial for accurately reporting locations, which is a key aspect of the monitoring event.