During an AIX installation, which of the following actions will occur once the Complete Overwrite option is selected?（）

• A、All new disks in the system will be formatted
• B、Only the contents of the root volume group destination disks will be destroyed
• C、All file systems, including /(root), /tmp, /usr, and /var, but no usr data in the root volume group, will be destroyed
• D、The contents of all disks on the system, even if they are not shown as the destination root volume group disks, will be destroyed