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': 'The transmission of filariasis is an example of \nSelect and explain. \nA. Propagative transmission, B. Cyclo-developmental transmission, C. Cyclical transmission, D. Cyclo-propagative transmission', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]