This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Anatomy
[{'content': 'All of the following are true except? \nSelect and explain. \nA. Artery wall is thicker, B. Artery contains oxygenated blood, C. Arteries has high pressure, D. Artery has valves', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans d) Artery has valvesArteries have no valves. All other options are correct.', 'role': 'assistant'}]