This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
[{'content': 'Man is a definitive host of which parasite - \nSelect and explain. \nA. Malaria, B. Filaria, C. Measles, D. Tapeworm', 'role': 'user'}, {'content': 'Answer: B \nExplanation: W.bancrofti passes its life cycle in two host Man- definive host Mosquito- intermediate host No animal reservoir host is known (refer pgno:167 baveja 3 rd edition)', 'role': 'assistant'}]