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': 'In women having PCOD with irregular menstrual cycles, combined oral contraceptive pills \nSelect and explain. \nA. Increase sex hormone binding globulin, B. Cause endometrial hyperplasia, C. Increases lutenizing hormone, D. Increase insulin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In combined OCPS, estrogen component increases\xa0levels of SHBG, which binds free androgen.', 'role': 'assistant'}]