Which action enables an administrator to make a VIO Server automatically activate when the physical machine is powered on？（）
- AEnsure the /etc/auto_start file exists on the VIos
- BEnsure the ’cfgdev -a boot=yes’ command has been executed.
- CSelect the ’Automatically start when the managed system is powered on’ option within the vio Server lpar profile.
- DAdd the VIO Server to the ’Automatically start when the managed system is powered on’ field on the managed System properties.