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 are the characteristics of cellulitis, EXCEPT \nSelect and explain. \nA. Acute onset, B. Doughy to indurated consistency, C. Caused by aerobic bacteria, D. Well circumscribed', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]