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
Permanent deformation following strain in compression in increasing order for elastomers 
Select and explain. 
A. Addition silicone, condensation silicone, polyether, poly sulphide, B. Poly sulphide, poly ether, Addition silicone, condensation silicone, C. Poly sulphide, poly ether, condensation silicone, Addition silicone, D. Polyether, poly sulphide, addition silicone, condensation silicone
A: Addition silicone, condensation silicone, polyether, poly sulphide
Answer: A: Addition silicone, condensation silicone, polyether, poly sulphide 
Explanation: None