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: Ophthalmology
[{'content': 'The magnification obtained with a direct ophthalmoscope is – \nSelect and explain. \nA. 5 times, B. 10 times, C. 15 times, D. 20 times', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Image on direct ophthalmoscopy → Erect, virtual, 15 times magnified', 'role': 'assistant'}]