How would you describe an attack where an attacker attempts to deliver the payload over multiple packets over long periods of time?

How would you describe an attack where an attacker attempts to deliver the payload over multiple packets over long periods of time with the purpose of defeating simple pattern matching in IDS systems without session reconstruction? A characteristic of this attack would be a continuous stream of small packets.

A.
Session Splicing

B.
Session Stealing

C.
Session Fragmentation

D.
Session Hijacking