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 one of the following is the result of applying a load to a wire below its modulus of elasticity on a load deflection diagram? 
Select and explain. 
A. Fracture of the wire, B. Permanent deformation, C. Spring back, D. Increase in stiffness
C: Spring back
Answer: C: Spring back 
Explanation: None