The suggested answer is B, C.
Based on the provided configuration, the workspace mode is set to normal in FortiManager. This setting means that changes are not automatically submitted or installed; instead, they need to be reviewed and installed manually. If an administrator's session is closed ungracefully, the ADOM remains locked until the session times out, ensuring the ADOM is not left in an indeterminate state. Additionally, the same administrator can lock more than one ADOM at the same time, allowing concurrent modifications across different ADOMs. Therefore, the correct answers are B and C.