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': 'Provisional\trestorative\tmaterials should\tpossess\tall properties except \nSelect and explain. \nA. Dimensionally stable, B. Ease of contouring and polishing, C. Low abrasion resistance, D. Good appearance', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]