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
[{'content': 'Indication of systemic steroids in rheumatoid arthritis is - \nSelect and explain. \nA. Mononeuritis multiplex, B. Carpul tunnel syndrome, C. Presence of defomities, D. Articular cartilage involvement', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]