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': 'A 36 year old male patient has reported to you with swelling in the submandibular region. His tongue is elevated and he complains of dysphagia. He has high fever. Intra orally examination reveals grossly destructed lower first molar.\n\nHigh fever associated with the above patient may be due to \nSelect and explain. \nA. Septicaemia, B. Reduced immunity, C. Severity of Infection, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]