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': 'Symptoms of sinusitis are all except - \nSelect and explain. \nA. Blood stained rhinorrhoea, B. Facial edema, C. Nasal blockage, D. Diplopia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]