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
Which of the following is not a clinical feature of gangrene 
Select and explain. 
A. 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.
D: Gas produced by the organism in Kedney leading to foaming kidney.
Answer: D: Gas produced by the organism in Kedney leading to foaming kidney. 
Explanation: Clinical features of gas gangrene are:

Foul smelling necrosis of the muscle bundles
Loss of contractility of the muscle
The skin becomes dull red, green or black
Crepitus
Foaming liver due to gas produced by the organisms in liver.