This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Medicine
[{'content': 'Felty syndrome \nSelect and explain. \nA. Splenomegaly and neutropenia, B. Nodules in upper lobe of lung and difficulty in breathing, C. Digital ulceration and gangrene, D. Multiple finger deformities', 'role': 'user'}, {'content': "Answer: A \nExplanation: Felty's syndrome is an extra aicular manifestation of rheumatoid ahritis.It is the association of splenomegaly & neutropenia with RA. Common features include spmenomegaly, lymphadenopathy,weight loss,skin pigmentation ,recurrent infections ,nodules,vasculitis,leg ulcers.", 'role': 'assistant'}]