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': 'All of the following regarding tetanus are true except: \nSelect and explain. \nA. Caused by Clostridium tetani, B. Spores are present in the soil, C. Produce tetanospasmin an endotoxin, D. Produces spasm of muscles', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Tetanus\n\nCaused by Clostridium tetani\nSpores are present in the soil\nThrives in dead or contaminated tissue\nProduce tetanospasmin an exotoxin\nProduces spasm of muscles\nMake sure patients are immunised\nFor heavily contaminated wounds give anti-tetanus globulin\n\nKey Concept:\nTetanospasmin is an exotoxin produced by C. tetani.', 'role': 'assistant'}]