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
Fibrous ankylosis is caused by which of the following: March 2005 
Select and explain. 
A. Septic ahritis, B. TB ahritis, C. Bechet's disease, D. Psoriatic ahritis
B: TB ahritis
Answer: B: TB ahritis 
Explanation: Ans. B: TB Ahritis