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': 'karyopyknotic index is \nSelect and explain. \nA. Ratio of mature squamous cells over the intermediate and basal cells., B. Ratio of dysplastic squamous cells over the normal squamous cells., C. Ratio of Koilocytes over normal squamous cells., D. Ratio of immature basal cells over total number of cells.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Karyopyknotic index is ratio of mature squamous cells over the intermediate and basal cells.', 'role': 'assistant'}]