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': 'Percentage of cystic glandular hyperplasia turning to malignancy \nSelect and explain. \nA. 0.10%, B. 2%, C. 1%, D. 10%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: WHO classification and Progression to Carcinoma\nPercentage of cystic glandular hyperplasia\xa0turning to malignancy is\xa01%', 'role': 'assistant'}]