Question: 0 . 0 % complete Question A system administrator troubleshoots some group management problems and decides to use the echo $ ? command to display

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A system administrator troubleshoots some group management problems and decides to use the echo $? command to display the exit values for the groupadd command. What does exit code 9 indicate to the administrator?
A.Success
B.GID not unique
C.Invalid argument syntax
D.Group name not unique

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