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': 'Tubal patency can be checked by all EXCEPT: March 2013 \nSelect and explain. \nA. Hysterosalpingography, B. Laparoscopic chromotubation, C. Post coital test, D. Sonosalpingography', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Post coital test', 'role': 'assistant'}]