This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
[{'content': 'Veins are an example of \nSelect and explain. \nA. Conducting vessels, B. Distributing vessels, C. Resistance vessels, D. Capacitance vessels', 'role': 'user'}, {'content': 'Answer: D \nExplanation: the veins are examples of capacitance vessels', 'role': 'assistant'}]