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 differenciated with - \nSelect and explain. \nA. Pseudomyxoma peritonei, B. Pseudomonas infection, C. Clostridium nouyi, D. Non clostridial infection", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]