An IT manager is concerned about server administrators having to be cross-trained to work on everyserver. Which of the following is the BEST way to correct this problem？（）

• A、 Ensure that server baselines are documented for each server.
• B、 Ensure that all server documentation is completed and up to date.
• C、 Ensure that each server is accessible via a KVM over IP.
• D、 Ensure that each server is processed through the change control board.