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': 'EUSOL solution used in treatment of venous ulcer contains all except \nSelect and explain. \nA. Boric acid, B. Calcium hydroxide, C. Sodium hypochlorite, D. Sodium hydroxide', 'role': 'user'}, {'content': "Answer: D \nExplanation: EUSOL - Edinburgh university solution of lime doesn't contain sodium hydroxide.", 'role': 'assistant'}]