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
Biocompatibility is good for: 
Select and explain. 
A. polyether, B. Polysulphide, C. Condensation silicone, D. Addition silicone
B: Polysulphide
Answer: B: Polysulphide 
Explanation: None