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': 'Long term steroid therapy can lead to suppression of hypothalamic–pituitary–adrenal axis. It can be overcome by using alternate day therapy with corticosteroids. Which of the following steroids are unsuitable for alternate day therapy for such purpose ? \nSelect and explain. \nA. Cortisol, B. Prednisolone, C. Betamethasone, D. Hydrocortisone', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]