Which configuration change must you make to block an offending IP address temporarily?

Refer to the exhibit.

Which configuration change must you make to block an offending IP address temporarily?
A . Add the offending IP address to the system block list
B. Add the offending IP address to the user block list
C. Add the offending IP address to the domain block list
D. Change the authentication reputation setting status to Enable

Answer: D

Explanation:

Reference: https://help.fortinet.com/fweb/550/Content/FortiWeb/fortiweb-admin/blacklisting.htm