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: Pathology
The action of putrefactive bacteria on necrotic tissue results in 
Select and explain. 
A. Infarction, B. Embolism, C. Gangrene, D. Coagulation
C: Gangrene
Answer: C: Gangrene 
Explanation: Gangrene Gangrene is necrosis of tissue associated with superadded putrefication, most often following coagulative necrosis due to ischemia.