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: Dental
[{'content': 'The advantage of resin teeth over porcelain teeth is \nSelect and explain. \nA. Greater wear resistance, B. Increased hardness, C. Better dimensional stability, D. Greater impact resistance', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]