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
Which of the following is true about Agar hydrocolloid impression material? 
Select and explain. 
A. Liquefies between 71 - 100°C, B. Solidfies between 50 - 70°C, C. Facilitates fabrication of metal dyes, D. Cannot register fine surface details
A: Liquefies between 71 - 100°C
Answer: A: Liquefies between 71 - 100°C 
Explanation: None