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': 'Total alveolar ventilation volume (in 1:./min) is: \nSelect and explain. \nA. 1.5, B. 3.5, C. 4.2, D. 5', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. 4.2', 'role': 'assistant'}]