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
Indication of systemic steroids in rheumatoid arthritis is - 
Select and explain. 
A. Mononeuritis multiplex, B. Carpul tunnel syndrome, C. Presence of defomities, D. Articular cartilage involvement
A: Mononeuritis multiplex
Answer: A: Mononeuritis multiplex 
Explanation: None