This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skeletal infections, Subject name: Orthopaedics
Which of the following causes bony ankylosis 
Select and explain. 
A. TB, B. Septic ahritis, C. Gouty ahritis, D. Behcet's disease
B: Septic ahritis
Answer: B: Septic ahritis 
Explanation: CAUSES OF BONY ANKYLOSIS : TRAUMA HEMAHROSIS SUPPURATIVE AHRITIS RHEUMATOID AHRITIS OSTEOMYLITIS FRACTURE OF CONDYLE REF : MAHESWARI 9TH ED