What other configuration is missing?

The ASA administrator wants to configure Botnet Traffic Filter using the dynamic database but it is not working properly after the initiate configuration has been entered. What other configuration is missing?

A.
Enabling DNS Snooping

B.
Enabling Botnet Traffic Filtering on at least one of the ASA interface

C.
Enabling the ASA to periodically download the dynamic database from Cisco

D.
Enabling DNS inspection globally

E.
Configuring the manual white and black lists