This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Dental
[{'content': 'Topical steroids are used in treatment of \nSelect and explain. \nA. Fungal keratitis, B. Disciform keratitis, C. Viral keratitis, D. Pyogenic keratitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .', 'role': 'assistant'}]