This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immune system, Subject name: Medicine
Erosive ahritis is seen in all, except 
Select and explain. 
A. SLE, B. Gout, C. Osteoahritis, D. Old age
A: SLE
Answer: A: SLE 
Explanation: Ref Semantischolar.org