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': 'Most hazardous pesticide colour coding is – \nSelect and explain. \nA. Red, B. Green, C. Yellow, D. Black', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Toxicity Colour Labels of Pesticides in India\n• Red label: Extremely toxic – Zinc phosphide\n• Yellow label: Highly toxic – Endosulphan\n• Blue label: Moderately toxic – Malathion\n• Green label: Slightly toxic – Mosquito repellants', 'role': 'assistant'}]