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 movement of Temperomandibular joint is due to: 
Select and explain. 
A. Tight capsule., B. Loose capsule., C. Both, D. None.
A: Tight capsule.
Answer: A: Tight capsule. 
Explanation: None