This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brainstem lesions and blood supply of CNS, Subject name: Anatomy
Which aery supplies the cochlea? 
Select and explain. 
A. Anterior inferior cerebellar, B. Labyrinthine, C. Pontine, D. Posterior cerebral
B: Labyrinthine
Answer: B: Labyrinthine 
Explanation: Labyrinthine aery supplies the cochlea and the vestibular apparatus. -In 85% of the population, it arises from the anterior inferior cerebellar aery. -In the remaining 15% of the population, it arises from the basilar aery.