This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: SLE, Subject name: Medicine
[{'content': 'Which of the following antibodies is highly specific for systemic lupus erythematosus - \nSelect and explain. \nA. Anti-Sm, B. Anti-RO-1, C. Anti-UIRNP, D. Anti-Centeromere', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Anti-Sm", 'role': 'assistant'}]