Which action enables an administrator to make a VIO Server automatically activate when the physical machine is powered on？（）  

• A、Ensure the /etc/auto_start file exists on the VIos
• B、Ensure the ’cfgdev -a boot=yes’ command has been executed.
• C、Select the ’Automatically start when the managed system is powered on’ option within the vio Server lpar profile.
• D、Add the VIO Server to the ’Automatically start when the managed system is powered on’ field on the managed System properties.