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
Takayasu's arteritis most commonly affects 
Select and explain. 
A. Radial artery, B. Femoral artery, C. Iliac artery, D. Subclavian artery
D: Subclavian artery
Answer: D: Subclavian artery 
Explanation: Subclavian artery is most commonly involved in Takayasu's arteritis.