This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acute coronary syndrome, Subject name: Medicine
Which of the following aery is most common to undergo atherosclerotic changes leading to coronary aery disease ? 
Select and explain. 
A. Right coronary aery, B. Left anterior descending coronary aery, C. Left circumflex coronary aery, D. Left main coronary aery
B: Left anterior descending coronary aery
Answer: B: Left anterior descending coronary aery 
Explanation: Left anterior descending coronary aery(40-50%) is most commonly involved in CAD, followed by Right coronary aery (30-40%)then Left Circumflex coronary aery (15-20%).