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': 'True about blood flow in various organs: \nSelect and explain. \nA. Liver>Kidney>Brain > Hea, B. Liver > Brain > Kidney > Hea, C. Kidney > Brain > Hea > Liver, D. Liver > Hea > Brain > Kidney', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Liver > Kidney > Brain > Hea', 'role': 'assistant'}]