This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and health, Subject name: Social & Preventive Medicine
[{'content': 'Highly toxic insecticide, according to insecticides rules, are coded as- \nSelect and explain. \nA. Red, B. Green, C. Yellow, D. Blue', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Toxicity colour labels of pesticides In India Red label: Extremely toxic Zinc phosphide Yellow label : Highly toxic Endosulphan Blue Label : Moderately toxic Malathion Green label : Slightly toxic Mosquito repellants Ref: Insecticides Rules 1971, Central Insecticides Board, India', 'role': 'assistant'}]