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
Which one of these should not to be used in severe widespread psoriasis? 
Select and explain. 
A. Methotrexate, B. Oral retinoids, C. Cyclosporin, D. Oral glucocorticoids
D: Oral glucocorticoids
Answer: D: Oral glucocorticoids 
Explanation: Ans-D