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': "Felty's syndrome is associated with which of the following: September 2009 \nSelect and explain. \nA. Osteoahritis, B. Rheumatoid ahritis, C. Ankylosing spondylitis, D. Psoriatic ahritis", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: Rheumatoid Ahritis', 'role': 'assistant'}]