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': 'Direct Fick method of measuring cardiac output requires estimation of: \nSelect and explain. \nA. 02 content of aerial blood, B. 02 consumption per unit time, C. 02 content of blood from right ventricle, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: All of the above', 'role': 'assistant'}]