Create the directory /data and group owner should be the sysadmin group.

Answer and Explanation:

1.chgrp sysadmin /data

2.Verify using ls -ld /data command. You should get like

drwxr-x--- 2 root sysadmin 4096 Mar 16 17:59 /data

chgrp command is used to change the group ownership of particular files or directory.

Another way you can use the chown command.

chown root:sysadmin /data