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 one of the following is the result of applying a load to a wire below its modulus of elasticity on a load deflection diagram? \nSelect and explain. \nA. Fracture of the wire, B. Permanent deformation, C. Spring back, D. Increase in stiffness', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]