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': "Which artery does not contribute to little's area - \nSelect and explain. \nA. Septal branch of facial artery, B. Anterior ethmoidal artery, C. Sphenopalantine A, D. Posterior ethmoidal A", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Common Sites of Bleeding', 'role': 'assistant'}]