Which types of software appliance are involved of an events is received by an Event Collector, and the event is then to an Event Processor and causes an Offense to be updated on the Console?

Which types of software appliance are involved of an events is received by an Event Collector, and the event is then to an Event Processor and causes an Offense to be updated on the Console?
A . 13xx to 17xx to 31xx
B . 13xx to 18xxt o 21xx
C . 13xx to 16xx to 31xx
D . 15xx to 17xx to 21xx

Answer: C