Question: Which interface is utilized by the (U)SIM file access API to access the file system?
Option 1: UICC File System Interface (FSI)
Option 2: Mobile Equipment (ME) Interface
Option 3: Universal Subscriber Identity Module (USIM) Application Interface
Option 4: UICC FileView Interface
Explanation: The correct answer is Option 4 because the access to the file system is facilitated via the UICC FileView Interface, crucial for interacting with the file structure on the (U)SIM, making it the appropriate choice for file access API operations.