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 pin that causes minimum stress in dentin is 
Select and explain. 
A. Threaded pin, B. Cemented pin, C. Amalga pin, D. Friction lock pin
B: Cemented pin
Answer: B: Cemented pin 
Explanation: None