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
Which artery does not contribute to little's area - 
Select and explain. 
A. Septal branch of facial artery, B. Anterior ethmoidal artery, C. Sphenopalantine A, D. Posterior ethmoidal A
D: Posterior ethmoidal A
Answer: D: Posterior ethmoidal A 
Explanation: Common Sites of Bleeding