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: Pharmacology
Select the regime of corticosteroids which has the maximum adverse effect potential ? 
Select and explain. 
A. Prednisolone 20 mg/day oral for one year, B. Prednisolone 60 mg/day oral for 7 days, C. Dexamethasone 4 mg intravenous daily for 3 days, D. Methyl–prednisolone 1000 mg intravenous twice single dose
A: Prednisolone 20 mg/day oral for one year
Answer: A: Prednisolone 20 mg/day oral for one year 
Explanation: None