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
Which aery does not contribute to Little's area 
Select and explain. 
A. Septal branch of facial aery, B. Anterior ethmoidal aery, C. Sphenopalantine aery, D. Posterior ethmoidal aery
D: Posterior ethmoidal aery
Answer: D: Posterior ethmoidal aery 
Explanation: LITTLE'S AREA (Anterior inferior pa of nasal septum) - Usual site for epistaxis in children. Four Aeries anastomose here and form Kiesselbach's Plexus. Anterior ethmoidal aery(Ophthalmic aery) Sphenopalatine(Maxillary aery) Septal branch of superior labial(Facial aery) Greater palatine aery(Maxillary aery) Ref: Dhingra 7e pg 197.