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: Surgery
Most common vessel affected in acute Limb ischaemia is 
Select and explain. 
A. Superficial femoral artery, B. Iliac artery, C. Popliteal artery, D. Tibial artery
A: Superficial femoral artery
Answer: A: Superficial femoral artery 
Explanation: Superficial femoral artery is most commonly affected artery in acute Limb ischaemia.