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
Dominant movement of root with relatively less movement of the crown is called 
Select and explain. 
A. Couple, B. Torque, C. Intrusion, D. Extrusion
B: Torque
Answer: B: Torque 
Explanation: None