Which command should be run from C:\data to remove the system property from all files and folders that are currently on the C drive?

Which command should be run from C:\data to remove the system property from all files and
folders that are currently on the C drive?

A.
The copy.exe*.* -system command.

B.
The command.com * -remove command.

C.
The attrib.exe -s /s command.

D.
The msconfig.exe -system C:\data\* command.