This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
[{'content': 'Cardiac dominance is based on \nSelect and explain. \nA. Anterior interventricular aery, B. Posterior interventricular aery, C. Circumflex aery, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cardiac dominance is based on the aery giving the posterior interventricular branch B D CHAURASIA&;S HUMAN ANATOMY UPPER LIMB THORAX-VOLUME1 SIXTH EDITION,Page no-265', 'role': 'assistant'}]