This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
[{'content': 'Aneurysm with third nerve palsy ? \nSelect and explain. \nA. Aneurysm of cavernous Sinus, B. Aneurysm of middle cerebral aery, C. Aneurysm of lower cerebral aery, D. Junction of PCA with JCA', 'role': 'user'}, {'content': 'Answer: D \nExplanation: *a third nerve palsy may be present due to local pressure from an aneurysm of the posterior communicating aery . Ref Harrison20th edition pg 2334', 'role': 'assistant'}]