This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
[{'content': "Which aery does not contribute to little's area: \nSelect and explain. \nA. Anterior ethmoidal aery, B. Septalbrach of facial aery, C. Sphenopalatine aery, D. Posterior ethmoidal aery", 'role': 'user'}, {'content': "Answer: D \nExplanation: Little's area-Anteroinferior pa of nasal septum- formed by- anterior ethmoidal aery,septal branch of superior labial aery,septal brach of sphenopalatine aery,greater palatine aery. Ref.Dhingra 6/e,p 176.", 'role': 'assistant'}]