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: Pathology
[{'content': 'Antinuclear antibody specific for SLE is ? \nSelect and explain. \nA. Anti ds DNA, B. Anti nuclear antibodies, C. Anti centromere antibody, D. Anti histone Ab', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Anti ds DNA", 'role': 'assistant'}]