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': 'Which of the following properties of dental materials is time dependant? \nSelect and explain. \nA. Creep, B. Resilience, C. Elastic limit, D. Ultimate strength', 'role': 'user'}, {'content': 'Answer: A \nExplanation: If metal is held at a temperature near its melting point and is subjected to constant applied stress, the resulting strain will\xa0increase\xa0over\xa0time.\xa0Creep\xa0is\xa0defined\xa0as\xa0the\xa0time-dependent plastic strain of a material under a static load or constant stress.\nReference: PHILLIPS’ SCIENCE OF DENTAL MATERIALS, 12th ed page no 33', 'role': 'assistant'}]