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: Surgery
[{'content': 'True about hydatid diseasea) MC site is lungb) Pre-op. Albendazole followed by surgery is the t/t of choicec) 20% saline is scolicidald) Puncture, aspiration, injection, and respiration (PAIR) done in hepatic hydatids. \nSelect and explain. \nA. cd, B. bc, C. bd, D. ac', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Most common site is liver followed by lung. Other sites which may be involved by E. granulosus are\n\n\nabdominal cavity\nkidney\n\tbrain\nbone\n\n\nScolicidal agents used in hydatid surgery\n\n\n20% hypertonic saline\n0.5% silver nitrate\n95% sterile ethanol\nAbsolute alcohol\nMebendazole 2.4 µg/ml\nThere is no place for the use of formaldehyde as a scolicidal agent.', 'role': 'assistant'}]