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
[{'content': 'Select the regime of corticosteroids which has the maximum adverse effect potential ? \nSelect and explain. \nA. 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', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]