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: Microbiology
[{'content': 'Regarding Clostridium perfringens gas gangrene,false is - \nSelect and explain. \nA. Common cause of gas gangrene, B. Nagler reaction positive, C. Most common toxin is hyaluronidase, D. Food poisoning strain of Cl. perfringens produces heat resistant spores', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]