Example of an insect order in which nymphs are called naids

Answer: Option B

Example of an insect order in which nymphs are called naids is Odonata.
Odonata is an order of flying insects that includes dragonflies and damselflies. All Odonata have aquatic larvae called naiads (nymphs), and all of them, larvae and adults, are carnivorous. The adults can land, but rarely walk. Their legs are specialized for catching prey. They are almost entirely insectivorous.