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: Biochemistry
[{'content': 'Lipotropic factor are all except \nSelect and explain. \nA. Choline, B. Lecithin, C. Arginine, D. Methionine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Arginine\n\nLipotropic factors are substances which prevent the accumulation of fat (TGs) in the liver.\nPrimary lipotropic factors → choline, betaine, methionine, lecithin, inositol.\nOther factors with some lipotropic action:- Vitamin-B12, folic acid, casein, glycine, essential fatty acids, selenium, vitamin E and serine.', 'role': 'assistant'}]