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': 'Life span of mosquito is? \nSelect and explain. \nA. 1 week, B. 2 weeks, C. 1 month, D. 1 year', 'role': 'user'}, {'content': "Answer: B \nExplanation: Under orable conditions of temperature and food supply, the life cycle from the egg to adult is complete in 7-10 days. Normally the adult mosquito lives for about 2 weeks. The males are generally sho-lived Park's Textbook of Preventive and Social Medicine, 25th Edition, Pg", 'role': 'assistant'}]