Which statement about a botnet attack is true?

Which statement about a botnet attack is true?

A.
The botnet attack is an attack on a firewall to disable it’s filtering ability.

B.
The botnet attack is a network sweeping attack to find hosts that are alive alive
behind the filtering device.

C.
The botnet attack is a collection of infected computers that launch automated
attacks.

D.
The owner of the infected computer willingly participates in automated attacks.

E.
The botnet attack enhances the efficiency of the computer for effective automated
attacks.