This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'Anti-ds DNA antibodies are most specific for \nSelect and explain. \nA. SLE, B. Rheumatoid ahritis, C. Scleroderma, D. Polymyositis', 'role': 'user'}, {'content': "Answer: A \nExplanation: The best screening test for SLE is a demonstration of Antinuclear antibodies (ANA) Sensitive test for SLE ANA Specific test for SLE Anti-ds DNA and Anti Sm antibody Ref - Harrison's internal medicine 20e pg 2515, 2516f, 2517t, 2518t, 2522", 'role': 'assistant'}]