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: Social & Preventive Medicine
[{'content': 'Desired parameter for control of HT - \nSelect and explain. \nA. Cholesterol/HDL < 3.5, B. HDL / cholesterol ration < 3.5, C. LDL / cholesterol > 10 mg%, D. HDL < 30 mg%', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Desired parameter for control of HT\n\nCholesterol / HDL ratio → A ratio of less than 3.5 has been recommended as a clinical goal for CHD prevention.\nHDL should be more than 40 mg/dl. (It has been changed in 22nd /e of Park. Previously recommended level was more than 30 mg/dl).\nCholesterol level 220 mg/d1 or less.', 'role': 'assistant'}]