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': 'Acute non suppurative otitis media in adults is due to - \nSelect and explain. \nA. Allergic-rhinitis, B. URTI, C. Trauma, D. Malignancy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A high incidence of NPC (Nasopharyngeal Carcinoma) in Souct East Asia and Southern China correlates with the high incidence of OME\xa0(Otitis Media with Effusion) in adults in these regions.”\nScotts Brown 7/e, vol 3 p. 3389\n"Presence of unilateral serous otitis media in an adult should raise suspicion of nasopharyngeal growth".\nRef. Dhingra 6/e p 257', 'role': 'assistant'}]