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
With obtura II system which has a high temperature gutta-percha but cools to 
Select and explain. 
A. 70°C, B. 110°C, C. 130°C, D. 160°C
A: 70°C
Answer: A: 70°C 
Explanation: None