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: Gynaecology & Obstetrics
[{'content': 'Best investigation endometriosis is \nSelect and explain. \nA. Laparoscopy, B. USG, C. X-ray pelvis, D. CT Scan', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Laparoscopy is an operation performed in the abdomen or pelvis through small incisions with the aid of a camera. \nThe laparoscope aids diagnosis or therapeutic interventions with a few small cuts in the abdomen', 'role': 'assistant'}]