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
Eminectomy is done for treatment of: 
Select and explain. 
A. TMJ ankylosis, B. TMJ dislocation, C. Coronoid fracture, D. All of the above
B: TMJ dislocation
Answer: B: TMJ dislocation 
Explanation: None