This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular Manifestations, Subject name: Ophthalmology
[{'content': 'ETDRS vision chart study is done in patients with diabetic retinopathy. ETDRS stands for : \nSelect and explain. \nA. Extended therapy for diabetic retinopathy & its study, B. Emergency treatment for diabetic retinopathy and study, C. Eye testing or rotatory drum & its study, D. Early treatment for diabetic retinopathy study', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Early treatment for diabetic retinopathy study By seeing these type of questions, don't make an impression that anything can be asked from anywhere in PG exams. These are always 2-3 rare questions in a paper and they are very rarely repeated. Don't let them deter you from preparing the most probable topics and questions. Prepare the most probable and most probably you get selected.", 'role': 'assistant'}]