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
True about MMV: 
Select and explain. 
A. 150 lt per min, B. Measured with maximum voluntary effo, C. Maximum breathing capacity per minute, D. All
D: All
Answer: D: All 
Explanation: MVV: 150lt per min Maximum volume of air that can be breathed In and out by the patient per min Ref: G K Pal textbook of Practical physiology 4th edition, page number:159