Which of the following is NOT an option to calculate the traffic direction?

Incoming is a valid Check Point traffic direction option, representing traffic arriving at the gateway from an outside source.

Internal is a valid Check Point traffic direction option, representing traffic that originates and remains within the internal network segment.

External is a valid Check Point traffic direction option, representing traffic on the external-facing interface of the gateway.

In Check Point traffic direction configuration, the three valid options are Incoming, Internal, and External. 'Outgoing' is not a valid traffic direction selector in Check Point - the framework uses 'External' to describe traffic toward external networks rather than offering a separate 'Outgoing' direction, making D the option that does NOT exist.