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 first orthodontic appliance devised by angle was 
Select and explain. 
A. Edgewise, B. Pin and tube appliance, C. E - arch, D. Ribbon arch
C: E - arch
Answer: C: E - arch 
Explanation: None