Correct option is D
The correct answer is dengue and Japanese Encephalitis.
The poster is aimed at creating awareness about the spread of dengue and Japanese encephalitis. Dengue and Japanese Encephalitis are caused by the blood sucking mosquitoes that breed in standing and stagnant water. The perception that dengue mosquito breeds only on clean water is unfounded. The mosquito may lay eggs in clean or muddy water that has been stagnant for few days. The dengue mosquito Aedes aegypti is one of the only few types of mosquitoes that spread dengue disease.