This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli), Subject name: Microbiology
[{'content': 'Pigbel is caused by: \nSelect and explain. \nA. Echinococcus, B. T. saginata, C. Clostridium perfringens, D. Clostridium tetani', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Pigbel is caused by by Clostridium perfringens. C. perfringens produces clinical syndromes as follows: a) Necrotizing enteritis/Pigbel Due to contaminated meat products. Incubation Period- 8-24 hrs. Involves Heat labile enterotoxin but spores are heat resistant. (b) Food poisoning (c) Soft tissue infections (d) Septicemia NOTE Clostridium perfringens causes stormy fermentation of lactose in litmus milk', 'role': 'assistant'}]