Question: In a 5G system, what is the primary goal for selecting among multiple available access technologies (3GPP and non-3GPP) for a service on a User Equipment (UE)?
Option 1: To ensure interoperability among all access technologies regardless of efficiency.
Option 2: For optimization and resource efficiency, potentially allowing simultaneous use of multiple access technologies.
Option 3: To prioritize the use of 3GPP access technologies over non-3GPP ones for all services.
Option 4: To limit the number of active services on a UE to one when using multiple access technologies.
Explanation: The primary goal for selecting among multiple available access technologies in a 5G system is not just about ensuring interoperability, but more specifically, it's about optimizing resource usage and efficiency. This approach enables the system to potentially utilize multiple access technologies simultaneously for one or more services active on a UE, enhancing overall performance and user experience.