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: Physiology
[{'content': 'Amount of coronary flow per minute is \nSelect and explain. \nA. 225 ml, B. 250 ml, C. 50 ml, D. 300 ml', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Total blood flow through various organs (whole organ)\n\nLiver - 1500ml/min - 27.8% of cardiac output\nKidney - 1260ml/min - 23.3% of cardiac output\nSkeletal muscle - 840ml/min - 15.6% of cardiac output\nBrain - 750ml/min - 13.9% of cardiac output\nSkin - 462ml/min - 8.6% of cardiac output\nHeart - 250ml/min - 4.7% of cardiac output\n\nBlood flow per unit mass in decreasing order –ml/100gm/min (Highest to lowest)\n\nKidney\nHeart\nLiver\nBrain\nSkin\nSkeletal muscle', 'role': 'assistant'}]