This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mechanics of Respiration, Subject name: Physiology
Minute Volume is - 
Select and explain. 
A. Vital capacity x respiratory rate, B. IRV x respiratory rate, C. ERV x respiratory rate, D. Tidal volume x respiratory rate
D: Tidal volume x respiratory rate
Answer: D: Tidal volume x respiratory rate 
Explanation: Ans. is 'd' i.e., Tidal volume x respiratory rateMinute volumeo It is the amount of air breathed in (inspired) or out (expired) by the lungs in one minute. So, minute volume = Tidal volume x Respiratory rate.o It is at about 6L (500 ml tidal volume x 12 breath per minute respiratory rate)o Minute volume is considered as a measure of pulmonary ventilation.