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: Pathology
Which of the following blood vessels is most commonly affected by atherosclerosis 
Select and explain. 
A. Popliteal artery, B. Thoracic aorta, C. Abdominal aorta, D. Coronary arteries
C: Abdominal aorta
Answer: C: Abdominal aorta 
Explanation: Abdominal aorta especially region below the renal arteries and above the iliac bifurcation is the most commonly affected vessel.