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': 'To do myringotomy in ASOM, the incision is given in posteroinferior region, this is the preferred region for all the following reasons except. \nSelect and explain. \nA. It is easily accessible, B. Damage to ossicular chain does not occur, C. Damage to chorda tympani is avoided, D. It is the very vascular region', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In SOM, myringotomy is done in antero-inferior quadrent because:It is relatively avascular area. blood loss is lessNo impoant structures are present here. No possibility of them being damaged.To stimulate Eustachian tube (which also lies in antero inferior quadrant)', 'role': 'assistant'}]