This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Ophthalmology
[{'content': 'How many incisions are used in the divided system approach of pars planavitrectomy? \nSelect and explain. \nA. 1, B. 2, C. 3, D. 4', 'role': 'user'}, {'content': 'Answer: C \nExplanation: It has the advantage of smaller instruments,easy handling,improved visualisation REF:khurana,pg no 261', 'role': 'assistant'}]