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: Surgery
Theory of TMJ ankylosis is/are: 
Select and explain. 
A. Condylar burst theory., B. Synovial fluid leaks and attracts calcium ion., C. Both., D. No such theories are there for TMJ ankylosis.
C: Both.
Answer: C: Both. 
Explanation: None