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 disease \nSelect and explain. \nA. MC site is lung, B. Pre-op. Albendazole followed by surgery is the tit of choice, C. 20% saline is scolicidal, D. All', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e. 20% saline is scolicidal Most common site is liver followed by lung. Other sites which may be involved by E. granulosus are abdominal cavity - kidney - brain - hone Scolicidal agents used in hydatid surgery 20% hypeonic saline - 0.5% silver nitrate 95% sterile ethanol Absolute alcohol - Mebendazole 2.4 ,ug/m1 There is no place for the use of formaldehyde as a scolicidal agent.", 'role': 'assistant'}]