This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Physiology
[{'content': 'Respiratory minute volume of lung is \nSelect and explain. \nA. 6 L, B. 4 L, C. 500 mL, D. 125 L', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Respiratory minute volume of the lung is 6 litres Ref: guyton and hall textbook of medical physiology 12 edition page number:324,325,326', 'role': 'assistant'}]