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': "'Gas' in the tissue should be differentiated with ? \nSelect and explain. \nA. Pseudomyxoma peritonei, B. Pseudomonas infection, C. Clostridium nouyi, D. Non clostridial infection", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Clostridium nouyi", 'role': 'assistant'}]