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': 'Cornification Index is maximum in : \nSelect and explain. \nA. Early secretory phase, B. Late proliferative phase, C. Late secretory phase, D. Early proliferative phase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Late proliferative phase', 'role': 'assistant'}]