Females in the Wasp Genus Nasonia Typically Lay Eggs in the Pupa

Females in the wasp genus Nasonia typically lay eggs in the pupa of blowflies. The wasp eggs hatch into larvae, and the larvae kill and eat the fly pupa. Based on these observations, which statement is false?

A) The wasps and the blowflies are engaged in a predatory relationship.
B) The wasps are parasitoids.
C) The wasps can be thought of as both predators and parasites, albeit unusual ones.
D) The wasps are generalist.