Which option describes what occurs with asymmetric routing when an IPS normalization engine is
enable?

A.
It allows the return packets back to the source path.

B.
It must see a valued SYN/ACK before it lets a flow pass, otherwise the IPS normalization engine
assumes that is is encountering a fragmentation attack, and it drops the return packets

C.
It must see a valid ACK/ACK before it lets a flow pass.

D.
It must see a valid SYN/ACK before it lets a flow pass, otherwise the IPS normalization engine assumes
that it is in encountering an evasion attack and drops the return packets.