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': 'Biodegradable waste products, disposing in which of the colour code of the bags- \nSelect and explain. \nA. Blue, B. Black, C. Green, D. Yellow', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Yellow", 'role': 'assistant'}]