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: Unknown
[{'content': 'Which one of these should not to be used in severe widespread psoriasis? \nSelect and explain. \nA. Methotrexate, B. Oral retinoids, C. Cyclosporin, D. Oral glucocorticoids', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans-D', 'role': 'assistant'}]