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: Orthopaedics
Spina Ventosa results from - 
Select and explain. 
A. Sarcoidosis, B. Tuberculosis, C. Histiocytosis X syndrome, D. Both A + B but not C
B: Tuberculosis
Answer: B: Tuberculosis 
Explanation: Spina ventosa is the name given to tuberculosis of the phalanges of hand.