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
Serial technique Or telescoping technique is another name of: 
Select and explain. 
A. Step back technique., B. Crown down technique., C. Standarize technique., D. Balance force technique.
A: Step back technique.
Answer: A: Step back technique. 
Explanation: Schilder called the step back technique as serial Or telescoping technique.