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: Pharmacology
[{'content': 'Which hypolipidemic drug acts primarily by decreasing VLDL - \nSelect and explain. \nA. Fibrates, B. Nicotinic acid, C. Statins, D. Cholestyramine', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is'a'i.e., FibratesRef: KDT 6h/e p. 614; Harrison 18th/e ch. 356Fibrates (e.g. clofibrate) activate lipoprotein lipase, therefore, enhance lipolysis of triglycerides in VLDL.Statins and nicotinic acid also decrease VLDL but it is not their main mechanism of action.", 'role': 'assistant'}]