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
How many incisions are used in the divided system approach of pars planavitrectomy? 
Select and explain. 
A. 1, B. 2, C. 3, D. 4
C: 3
Answer: C: 3 
Explanation: It has the advantage of smaller instruments,easy handling,improved visualisation REF:khurana,pg no 261