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': 'In NIDDM, fundus examination is done – \nSelect and explain. \nA. At the time of diagnosis, B. 5 year after diagnosis, C. At diagnosis & 5 years after diagnosis, D. At 2 years', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]