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
Tear strength of which is least? 
Select and explain. 
A. Poly Sulphide, B. Polyether, C. Addition Silicone, D. Condensation Silicone
C: Addition Silicone
Answer: C: Addition Silicone 
Explanation: None