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': 'In bishop score all are included except: \nSelect and explain. \nA. Effacement of cervix, B. Dilatation of cervix, C. Station of head, D. Interspinal diameter', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]