单选题An administrator performs an audit on the /usr filesystem and finds the following permissions： -rwsr-xr-x 1 root sys 514288 Jun 18 09：40 /usr/local/bin/nmon Which of the following methods can the administrator use to remove a potential security risk（）Arm /usr/local/bin/nmonBchmod u-s /usr/local/bin/nmonCReinstall the file from the appropriate filesetDchmod go-rx /usr/local/bin/nmon
单选题
An administrator performs an audit on the /usr filesystem and finds the following permissions： -rwsr-xr-x 1 root sys 514288 Jun 18 09：40 /usr/local/bin/nmon Which of the following methods can the administrator use to remove a potential security risk（）
A
rm /usr/local/bin/nmon
B
chmod u-s /usr/local/bin/nmon
C
Reinstall the file from the appropriate fileset
D
chmod go-rx /usr/local/bin/nmon
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