This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': "Onion peel appearance of splenic capsule is seen in \nSelect and explain. \nA. SLE, B. Scleroderma, C. Rheumatoid ahritis, D. Sjogern's syndrome", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref Robbins 9/e p224 In splenic involvement in SLE _splenomegaly, capsular thickeing , follicular hyperplasia,are common feature . central penicilliary aeries may show concerntric intimal and smooth muscle cell hyperplasia , producing onion skin appearance', 'role': 'assistant'}]