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
Rotational changes in the mandible essentially consist of 
Select and explain. 
A. Matrix rotation 25% and Intramatrix rotation 75%, B. Matrix rotation 50% and Intramatrix rotation 50%, C. Matrix rotation 100% and Intramatrix rotation 0%, D. Matrix rotation 0% and Intramatrix rotation 100%
A: Matrix rotation 25% and Intramatrix rotation 75%
Answer: A: Matrix rotation 25% and Intramatrix rotation 75% 
Explanation: None