Question: In a Deferred Location Request (LDR) cancellation procedure initiated by the Home Gateway Mobile Location Centre (H-GMLC), what triggers the H-GMLC to perform or request a new privacy check for every outstanding LDR against the target UE?
Option 1: Expiry of the validity timer specified by the start and stop times in the R-GMLC.
Option 2: Change in the UE's location, moving outside the previously defined area.
Option 3: Receipt of an LCS Cancel Service Request from the Visited Gateway Mobile Location Centre (V-GMLC).
Option 4: Update to the UE subscriber's privacy profile stored in the H-GMLC or Policy Provisioning Repository (PPR).
Explanation: According to the procedure for cancelling a Deferred MT-LR due to a UE available event, if the UE subscriber's privacy profile is updated (stored either in the H-GMLC or the PPR), the H-GMLC must perform or request a new privacy check for all outstanding Deferred Location Requests. This ensures that any changes in privacy settings are immediately reflected in the handling of location requests.