A system administrator wants to give full read/write/excute access to the owner and group of the /stuff directory and all subdirectories and files， but only allow read/execute for others. What command would the administrator use？（）

• A、chmod -R 775 /stuff
• B、chmod -h 002 /stuff
• C、chmod -R 577 /stuff
• D、chmod ug+rwx，o+rx /stuff