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: ENT
[{'content': "Complications of acute sinusitis -a) Orbital cellulitisb) Pott's puffy tumour c) Conjunctival chemosis d) Subdural abscess \nSelect and explain. \nA. abc, B. bcd, C. abd, D. All of the above", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Complications of Sinusitis—Acute Sinusitis', 'role': 'assistant'}]