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
The following graph shows linear contraction of four elastomeric impression materials. Which impression material is represented by red arrow? 
Select and explain. 
A. Polyether, B. Polysulfide, C. Addition silicone, D. Condensation silicone
D: Condensation silicone
Answer: D: Condensation silicone 
Explanation: None