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': 'Which of the following is a zoonotic disease? \nSelect and explain. \nA. Filariasis, B. Malaria, C. Hydatid cyst, D. Dengue fever', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]