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 % of free monomer in a heat — cured acrylic resin is 
Select and explain. 
A. 3% to 5%, B. 8% to 10%, C. 0.2% to 0.5%, D. 0.6% to 0.8%
C: 0.2% to 0.5%
Answer: C: 0.2% to 0.5% 
Explanation: None