Question: Which of the following is NOT a primary purpose for utilizing sensor data (e.g., accelerometer, gyroscope) and access technology information in a User Equipment (UE) within a 5G system?
Option 1: Enhancing application-specific communication efficiency based on traffic characteristics.
Option 2: Optimizing resource allocation within the 5G network infrastructure.
Option 3: Primarily for billing and subscriber identification purposes.
Option 4: Improving overall UE device security through behavioral analysis.
Explanation: The primary purposes involve enhancing application efficiency (Option 1) and optimizing 5G system resource utilization (Option 2). Billing, subscriber identification, and security are important but not the **primary** purposes for utilizing sensor data and access technology information as described.