Question: What is a prerequisite for initiating the personalization process on a Mobile Equipment (ME), as per the specified mobile functionality?
Option 1: The ME must have an active network connection.
Option 2: The network subset personalisation indicator must be set to 'off'.
Option 3: The ME's NSCK (Network Subset Control Key) must already be set.
Option 4: A SIM/USIM with a Co-operative Network List (CNL) must be present.
Explanation: This is correct because, according to the specifications, the personalization process can only be carried out on a currently unpersonalised ME, which is indicated by the network subset personalisation indicator being set to 'off'. This ensures that unauthorized or accidental personalization does not occur. The other options do not accurately represent prerequisites for initiating the personalization process as outlined in the specifications.