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
Respiratory minute volume of lung is 
Select and explain. 
A. 6 L, B. 4 L, C. 500 mL, D. 125 L
A: 6 L
Answer: A: 6 L 
Explanation: Respiratory minute volume of the lung is 6 litres Ref: guyton and hall textbook of medical physiology 12 edition page number:324,325,326