This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and health, Subject name: Social & Preventive Medicine
[{'content': 'Regarding Anopheles mosquito true is all except - \nSelect and explain. \nA. Eggs are laid singly on water, B. Larva dont have siphon, C. Wings are spotted, D. Pupa dont have siphon', 'role': 'user'}, {'content': "Answer: D \nExplanation: park's textbook of preventive and social medicine 23rd edition.*anophelini anopheles mosquitoes:eggs are laid singly and are boat shaped,and provide with lateral floats larva have no siphon tubes ,palmate hairs present on abdominal segments pupae has siphon tube which is broad and sho adult forms has spotted wings ,when at rest inclined at an angle to surface ,palpilong in both sexes .", 'role': 'assistant'}]