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
All are true about Abdominal aneurysm except: 
Select and explain. 
A. Atherosclerosis is the commonest cause, B. Most commonly arises from above the level of renal aery, C. For asymptomatic aneurysms, repair is indicated if the diameter is >5.5 cm, D. Endovascular placement of an aoic stent is use for repair
B: Most commonly arises from above the level of renal aery
Answer: B: Most commonly arises from above the level of renal aery 
Explanation: Answer- B. Most commonly arises from above the level of renal aery90% of abdominal aoic aneurysm (AAA) of size > 4cm in diameter is due to atherosclerosis.Male are more frequently affected than female.The aneurysm most commonly arises below the level of renal aery.