Question: What is the primary objective of testing all files within a Subscriber Identity Module (SIM) structure?
Option 1: To ensure each file's unique identifier allows for selective access via the SELECT function.
Option 2: To verify compliance with structural requirements across all files on the SIM.
Option 3: To establish a hierarchical organization of Dedicated Files and Elementary Files.
Option 4: To validate the operational speed of file selection processes on the SIM.
Explanation: The correct answer highlights the importance of unique file identifiers for selective access using the SELECT function, crucial for testing due to the function's dependency on specific file IDs to select files.