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 linear solidification shrinkage of Type IV Ni-Cr based alloys is 
Select and explain. 
A. 2.30%, B. 1.56%, C. 1.37%, D. 3%
A: 2.30%
Answer: A: 2.30% 
Explanation: None