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
Clinical appearance of bilateral TMJ ankylosis: 
Select and explain. 
A. Bird face appearance., B. Vogel gesicht appearance., C. Andy gump appearance., D. All of the above.
D: All of the above.
Answer: D: All of the above. 
Explanation: None