Concept:Insects have different mouthpart types depending on how they feed.
Piercing and sucking mouthparts are used to puncture a surface and draw out fluids such as blood or plant sap.
Explanation:The mosquito is the insect that possesses piercing and sucking mouthparts.
Its proboscis is a long, needle-like structure adapted to pierce the skin of humans and animals.
Through this proboscis, the mosquito sucks blood for nourishment.
The housefly has a sponging mouthpart that only laps up liquid food, so it does not pierce.
The grasshopper has a biting and chewing mouthpart used for feeding on solid plant material.
The cockroach also possesses a chewing mouthpart for consuming solid organic matter.
Therefore, the mouthpart adapted for piercing and sucking is found only in the mosquito among the given options.
Answer:C. mosquito