This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Which of the following is a differentiating feature of anopheles from aedes mosquito ? \nSelect and explain. \nA. Pupa has broad siphon, B. Eggs are oval shaped, C. Wings unspotted, D. Popi are sho', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Pupa has broad siphon", 'role': 'assistant'}]