Question: What is the nature of supporting CMAS (Cell Broadcast Message Service) reception in a User Equipment (UE) as per E-UTRA specifications?
Option 1: Mandatory for all UEs to ensure public safety features are universally available.
Option 2: Optional for UE manufacturers, dependent on regional regulatory requirements.
Option 3: Conditional, based on the UE's support for specific frequency bands.
Option 4: Reserved exclusively for UEs with Geofencing capabilities.
Explanation: The correct answer is Option 2 because supporting CMAS reception is left to the discretion of the UE manufacturer, allowing for varied market and regulatory responses worldwide. This feature's implementation is tailored to specific needs, which could include regional regulatory requirements, highlighting its optional nature.