This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders in Menstruation, Subject name: Gynaecology & Obstetrics
[{'content': '% of PCOS patients having diabetes mellitus: \nSelect and explain. \nA. 50%, B. 30%, C. 20%, D. 10%', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is d, i.e. 10%Ref: Leon Speroff 8th/ed, p5I7PCOS: Upto 35% exhibit impaired glucose tolerance and upto 10% have diabetes mellitus.In all PCOS patients, a baseline 2-hour OGTT is recommended.', 'role': 'assistant'}]