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: Medicine
A 40 year old gentleman is brought to the emergency services with a history of acute severe headache followed by sudden loss of consciousness. The most likely source of bleeding is: 
Select and explain. 
A. Middle meningeal artery, B. Bridging veins, C. Charcot–Bouchard aneurysms of the lenticulostriate branches of the middle cerebral artery, D. Rupture of a saccular aneurysm at junction of anterior cerebral artery and anterior communicating artery
D: Rupture of a saccular aneurysm at junction of anterior cerebral artery and anterior communicating artery
Answer: D: Rupture of a saccular aneurysm at junction of anterior cerebral artery and anterior communicating artery 
Explanation: None