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: Microbiology
[{'content': 'Man is a definitive host for - \nSelect and explain. \nA. Echinococcos, B. Malaria, C. Filariasis, D. Rabies', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c ' i.e., Filariasis", 'role': 'assistant'}]