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
Percentage of cystic glandular hyperplasia turning to malignancy 
Select and explain. 
A. 0.10%, B. 2%, C. 1%, D. 10%
C: 1%
Answer: C: 1% 
Explanation: WHO classification and Progression to Carcinoma
Percentage of cystic glandular hyperplasia turning to malignancy is 1%