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': 'Post coital test is used to assess : \nSelect and explain. \nA. Cervical factor, B. Vagical factor, C. Uterine factor, D. Nose', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cervical factor', 'role': 'assistant'}]