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
In Stationary anchorage, anchorage is obtained from 
Select and explain. 
A. More stable teeth, B. Extra - oral, C. Teeth from the opposite arch, D. Stationary teeth
A: More stable teeth
Answer: A: More stable teeth 
Explanation: None