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': 'Which of the following is not a clinical feature of gangrene \nSelect and explain. \nA. Foul smelling necrosis of the muscle bundle, B. Loss of contractility of the muscle, C. The skin becomes dull red ,green or black., D. Gas produced by the organism in Kedney leading to foaming kidney.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Clinical features of gas gangrene are:\n\nFoul smelling necrosis of the muscle bundles\nLoss of contractility of the muscle\nThe skin becomes dull red, green or black\nCrepitus\nFoaming liver due to gas produced by the organisms in liver.', 'role': 'assistant'}]