This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Anatomy
[{'content': 'Most impoant component of Bishop score \nSelect and explain. \nA. Position, B. Dilatation, C. Station, D. Effacement', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The most impoant component of bishop score is dilatation of cervix', 'role': 'assistant'}]