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: Medicine
[{'content': 'Anti-double stranded DNA is highly specific for - \nSelect and explain. \nA. Systemic sclerosis, B. S.L.E., C. Polymyositis, D. Rheumatic sclerosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]