This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cerebrovascular Disorders, Subject name: Surgery
Most common site of berry's aneurism is - 
Select and explain. 
A. Trifurcation of internal carotid artery, B. Junction of anterior cerebral and anterior communicating artery, C. Bifurcation of basilar artery, D. Middle cerebral artery
B: Junction of anterior cerebral and anterior communicating artery
Answer: B: Junction of anterior cerebral and anterior communicating artery 
Explanation: Ans. is' b' i.e., Junction of anterior cerebral and anterior communicating artery Most common sites of Berry's Aneurysma. Junction of anterior cerebral and anterior communicating arteryb. Bifurcation of MCAc. Trifurcation of CIAd. Bifurcation of basilar artery