This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hospital waste and disaster management, Occupational health, Subject name: Social & Preventive Medicine
[{'content': 'Amount of waste infectious produced in hospitals- \nSelect and explain. \nA. 45%, B. 65%, C. 80%, D. 100%', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .', 'role': 'assistant'}]