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': 'The quadrant for a myringotomy in a case of acute suppurative otitis media is: \nSelect and explain. \nA. Anterosuperior, B. Anteroinferior, C. Posteroinferior, D. Posterosuperior', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In acute suppurative otitis media, a circumferential incision is made in the posteroinferior quadrant of tympanic membrane, midway between handle of malleus and tympanic annulus, avoiding injury to incudostapedial joint.', 'role': 'assistant'}]