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 lung capacity is ? \nSelect and explain. \nA. 2.4 L, B. 3.6 L, C. 6 L, D. 10 L', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 6 L", 'role': 'assistant'}]