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': 'Method for waste disposal in small camps - \nSelect and explain. \nA. Burial, B. Tipping, C. Compositing, D. Manure pits', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is \'a\' i.e., Burial "Burial is suitable for small camps"__________ Park', 'role': 'assistant'}]