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
[{'content': 'Spina Ventosa results from - \nSelect and explain. \nA. Sarcoidosis, B. Tuberculosis, C. Histiocytosis X syndrome, D. Both A + B but not C', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Spina ventosa is the name given to tuberculosis of the phalanges of hand.', 'role': 'assistant'}]