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 thickness of band material used with tofflemire retainer ranges from 
Select and explain. 
A. 0.0508mm(0.02”), B. 0.0381mm(0.0015”), C. 0.0025mm(0.001”), D. 0.05mm(0.002”)
D: 0.05mm(0.002”)
Answer: D: 0.05mm(0.002”) 
Explanation: Tofflemire retainer is available in .002” and a modified .001” varaiants.