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
Which of the following properties of dental materials is time dependant? 
Select and explain. 
A. Creep, B. Resilience, C. Elastic limit, D. Ultimate strength
A: Creep
Answer: A: Creep 
Explanation: If metal is held at a temperature near its melting point and is subjected to constant applied stress, the resulting strain will increase over time. Creep is defined as the time-dependent plastic strain of a material under a static load or constant stress.
Reference: PHILLIPS’ SCIENCE OF DENTAL MATERIALS, 12th ed page no 33