CORRECT TEXT
Make on /data that only the user owner and group owner member can fully access.

Answer:

Explanation:
1. chmod 770 /data
2. Verify using : ls -ld /data
Preview should be like:
drwxrwx— 2 root sysadmin 4096 Mar 16 18:08 /data
To change the permission on directory we use the chmod command. According to the question
that only the owner user (root) and group member (sysadmin) can fully access the directory so:
chmod 770 /data