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
[{'content': 'All of the following aeries are common sites of occlusion by a thrombus except: \nSelect and explain. \nA. Anterior intervetricular, B. Posterior interventricular, C. Cirucumflex, D. Marginal', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Marginal Nodal, Acute Marginal & Posterior Descending (interventricular) aeryQ are branches of Right Coronary aery; whereas Circumflex, Diagonal, Obtuse Marginal & Anterior Descending (interventricular) aeryQ are branches of Left Coronary Aery. LAD, RCA and LCX are common whereas as marginal branches are uncommon site of thrombosis.', 'role': 'assistant'}]