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 ds DNA is most specific for: \nSelect and explain. \nA. SLE, B. Rheumatoid ahritis, C. Scleroderma, D. Polymyositis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (SLE): Anti Ds DNA antibodies are specific for SLE', 'role': 'assistant'}]