You are a standard user on a Linux system. You want to set permissions on the /etc/shadow file
so that it cannot be modified by any user. Which command will allow you to do this?
A.
Sudo chmod 000 /etc/shadow
B.
Sudo chattr +i /etc/shadow
C.
Chmod 000 /etc/shadow
D.
Chattr -i /etc/shadow
Explanation: