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': 'V/Q ratio at the base of lung? \nSelect and explain. \nA. 1, B. 3, C. 0.6, D. 1.8', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 0.6(Ref: Ganong 24hle P.636-637OverallV/Qratio of lung 0.8V/Qratio at aPex 3.0 (maximum)V/Q ratio at base - 0.6 (Least)", 'role': 'assistant'}]