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 test for diagnosis of tubal patency Is : \nSelect and explain. \nA. Laparoscopy, B. Hysterosalpingography, C. Endometrial biopsy, D. Mantoux test', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Laparoscopy', 'role': 'assistant'}]