Correct option is C
Dengue fever is spread by mosquitoes.
· (a) Culex mosquito – Incorrect, as it transmits Japanese encephalitis and filariasis, not dengue.
· (b) Anopheles mosquito – Incorrect, as it spreads malaria, not dengue.
· (c) Aedes mosquito – Correct, as both Aedes aegypti and Aedes albopictus spread dengue virus.
· (d) Housefly – Incorrect, as flies spread diseases like typhoid and cholera, not dengue.