The correct option is D Three pair legs
Male cockroaches usually have two sets of wings while females either lack wings or have wings that are too small for flying.
Cockroaches have a thorax that comprises of three segments as the prothorax, mesothorax and metathorax.
The cuticle is absent in anopheles.
Three pairs of legs are attached to thorax in cockroaches, while Anopheles and housefly also possess three pairs of legs.
Therefore, the correct answer is option C.