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
Anti-double stranded DNA is highly specific for - 
Select and explain. 
A. Systemic sclerosis, B. S.L.E., C. Polymyositis, D. Rheumatic sclerosis
B: S.L.E.
Answer: B: S.L.E. 
Explanation: None