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: Anatomy
Anterior pa of interventricular septum is supplied by - 
Select and explain. 
A. Right coronary aery, B. Left coronary aery, C. Posterior descending coronary aery, D. None
B: Left coronary aery
Answer: B: Left coronary aery 
Explanation: Anterior 2/3rd of septum is supplied by LCA and posterior 1/3rd is by RCA