Question: In a Hosting Party Subscription Identity Module (HPSIM) application, what does the EFAD (Administrative Data) indicate when its operation mode is set to '81'?
Option 1: Normal H(e)NB operation with all features activated
Option 2: Type approval operations for network equipment testing without additional facilities
Option 3: Type approval operations for network equipment testing with specific facilities enabled
Option 4: Offline maintenance mode for H(e)NB manufacturer's proprietary auto-tests
Explanation: The EFAD (Administrative Data) contains information about the mode of operation for the H(e)NB. The coding '81' specifically indicates type approval operations with the inclusion of specific facilities, allowing for network equipment testing during type approval procedures while enabling particular proprietary features or facilities.