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': 'Which of the following steroids is not used topically: \nSelect and explain. \nA. Hydrocoisone, B. Fluticasone, C. Triamcinolone, D. Prednisonlone', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Prednisonlone', 'role': 'assistant'}]