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: Surgery
Posterior communicating aery arises from 
Select and explain. 
A. Internal carotid, B. Middle cerebral, C. Basilar, D. Posterior cerebral
A: Internal carotid
Answer: A: Internal carotid 
Explanation: Internal carotid Internal carotid aery has five main branches to the brain: anterior cerebral, middle cerebral, ophthalmic, anterior choroidal and posterior communicating aery.