This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Operative Obs, Subject name: Gynaecology & Obstetrics
[{'content': "Not a laproscopy instrument - \nSelect and explain. \nA. Trocar, B. Pneumoperitoneum needle, C. Doyen's retractor, D. Fiberoptic camera", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Doyen's retractor o Pneumoperitoneum is created by Verres needle by usning CO2 which also used for saline injection,o Trocar & fiberoptic camera is also used after creating Pneumoperitoneum,o Doyen's retractor is used in LSCS.", 'role': 'assistant'}]