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': 'During surgical exploration for hydatid cyst of the liver, any of the following agents can be used as scolicidal agent except - \nSelect and explain. \nA. Hypeonic sodium chloride, B. Formalin, C. Cetrimide, D. Povidone Iodine', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Povidone Iodine", 'role': 'assistant'}]