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
If the circumflex artery gives off the posterior interventricular artery than the arterial supply is called - 
Select and explain. 
A. Right dominance, B. Left dominance, C. Balanced dominance, D. Undertermined
B: Left dominance
Answer: B: Left dominance 
Explanation: When a posterior interventricular artery is a branch of the right coronary artery, then it is a right dominance, whereas, if it is given off by the left coronary artery or circumflex artery, then it is a left dominance.