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': 'Oestrogen in pre-menopausal women has following effect on lipid profile \nSelect and explain. \nA. Decreased high-density lipoproteins, B. Increased low-density Lipoproteins, C. Increased high-density Lipoproteins, D. Increased total cholesterol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Oestrogen contributes to greater high-density lipoprotein which provides cardio protective effect.', 'role': 'assistant'}]