Question: What happens to a locked Mobile Terminal (MT) when the `+CMAR` Master Reset command is successfully executed, assuming the required `<phone lock code>` verification is passed?
Option 1: The MT remains locked with the same phone lock code.
Option 2: A new default phone lock code is automatically set after the reset.
Option 3: The MT will be unlocked after the master reset.
Option 4: The command execution is aborted, and an error message is returned.
Explanation: Successful execution of the `+CMAR` Master Reset command results in the MT being unlocked after the master reset, given that the phone lock code verification requirement is met, highlighting a key aspect of device management in telecom networks.