Let us suppose that we have the file: /home/alice/public_html/index.cgi which is a program, and which is owned by the user 'alice', and by the group 'team' that contains users 'alice', 'bob', and 'charlie'. The following users also use the system: 'dan' ed', and 'fred'. The ownerships and permissions of the files in the path are: Beside the group 'team' that was described, the group 'root' contains only the user 'root' and the team 'alice' contains only the user 'alice'. Which users of the system should be able to read, modify, or execute the program index.cgi? You do not need to consider the user 'root'. Explain your