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 cold abscess \nSelect and explain. \nA. Sign of acute inflammation present, B. Non - dependent incision is used, C. Suturing of wound is not done, D. Drain is placed', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cold abscess :\n\nNo signs acute inflammation.\nTuberculous bacteria.\nNondependent incision is used.\nWound is sutured.\nDrain is not placed (otherwise sinus will form which is difficult to treat).', 'role': 'assistant'}]