The system administrator notices the following file in a user's home directory: -rwsr-xr-x 1 root user1 628684 Jun 13 09:38 ksh. Which of the following does this file indicate?
A. The system has been compromised.
B. Only root has shared access for ksh.
C. The ksh service needs to be restarted.
D. ksh was inadvertently installed in user's directory.
Answer: A
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