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 copper NiTi wires are not available in the temperature range of: 
Select and explain. 
A. 15°, B. 29°, C. 35°, D. 40°
B: 29°
Answer: B: 29° 
Explanation: None