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
[{'content': 'Monoaicular joint involvement is seen in which of the following: September 2007 \nSelect and explain. \nA. Primary osteoahritis, B. Rheumatoid ahritis, C. Tubercular ahritis, D. Sero-neagtive spond-ahritis', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. C: Tubercular Ahritis Causes of polyahritis: Crystal-induced synovitis: gout, pseudogout (calcium pyrophosphate deposition disease), hydroxyapatite Systemic rheumatic disease: rheumatoid ahritis, systemic lupus erythematosus, polymyositis/dermatomyositis, juvenile rheumatoid ahritis, scleroderma, SjOgren's syndrome, Behcet's syndrome Spondyloahropathies: ankylosing spondylitis, psoriatic ahritis, inflammatory bowel disease, reactive ahritis (Reiter's) Primary osteoahritis", 'role': 'assistant'}]