Question: What is a key consideration in the Serving GW selection function to reduce the probability of changing the Serving GW when there are overlapping Serving GW service areas?
Option 1: Load balancing between Serving GWs
Option 2: UE support for dual connectivity with NR
Option 3: Selection of Serving GWs that serve the UE's location and have service areas that minimize the need for future changes
Option 4: CIoT EPS Optimisation(s) impacting Serving GW
Explanation: The correct answer is Option 3 because the Serving GW selection function considers network topology, including the selected Serving GW serving the UE's location and preferring Serving GWs with service areas that reduce the probability of changing the Serving GW. This ensures that the selected Serving GW can efficiently serve the UE without requiring frequent changes due to overlapping service areas.