Which statement correctly describes a botnet filter category?

[answerhappygod]

Which statement correctly describes a botnet filter category?

A. Unlisted addresses: The addresses are malware addresses that are not identified by the dynamic database and are hence defined statically.
B. Ambiguous addresses: In this case, the same domain name has multiple malware addresses but not all the addresses are in the dynamic database. These addresses are on the graylist.
C. Known malware addresses: These addresses are identified as blacklist addresses in the dynamic database and static list.
D. Known allowed addresses: These addresses are identified as whitelist addresses that are bad addresses but still allowed.