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 represents springback or springiness: 
Select and explain. 
A. Resilency., B. Toughness., C. Yield strength., D. Elasticity.
A: Resilency.
Answer: A: Resilency. 
Explanation: None