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
Boucher's method of relining is a 
Select and explain. 
A. Open mouth technique, B. Chair side relining technique, C. Functional relining method, D. Closed mouth relining technique
A: Open mouth technique
Answer: A: Open mouth technique 
Explanation: None