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
Which of the following best characterizes the pulmonary circulation? 
Select and explain. 
A. Flow - Low, Pressure - High, Resistance - Low, Compliance - High, B. Flow - High, Pressure - Low, Resistance - High, Compliance - Low, C. Flow - Low, Pressure - Low, Resistance - Low, Compliance - High, D. Flow - High, Pressure - Low, Resistance - Low, Compliance - High
D: Flow - High, Pressure - Low, Resistance - Low, Compliance - High
Answer: D: Flow - High, Pressure - Low, Resistance - Low, Compliance - High 
Explanation: Ans. D. Flow - High, Pressure - Low, Resistance - Low, Compliance - HighThe pulmonary circulation is a high flow, low-pressure, low-resistance, and high-compliance system.