How many options are available to calculate the traffic direction?

To help SmartEvent determine whether events originated internally or externally you must define using the Initial Settings under General Settings in the Policy Tab.

How many options are available to calculate the traffic direction?
A . 5 Network; Host; Objects; Services; API
B . 3 Incoming; Outgoing; Network
C . 2 Internal; External
D . 4 Incoming; Outgoing; Internal; Other

Answer: D