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': 'Ovicidal drug for scabies is - \nSelect and explain. \nA. BHC, B. DDT, C. HHC, D. Permethrin', 'role': 'user'}, {'content': "Answer: A \nExplanation: Treatment for scabies: Benzyl benzoate HCH or gamma lindane Tetmosol Sulfur ointment Park's Textbook of Preventive and Social Medicine, 25th Edition, Pg 842", 'role': 'assistant'}]