This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
[{'content': 'Cyclodevelopmental stage is seen is \nSelect and explain. \nA. Malaria, B. Filaria, C. Plague, D. Cholera', 'role': 'user'}, {'content': 'Answer: B \nExplanation: cyclodevelopmental cycle means the agent undergoes only development but not multiplication,example is mocrofilaria in mosquitoref;parks textbook,ed22,pg94', 'role': 'assistant'}]