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': 'Apolipoprotein E is rich in ? \nSelect and explain. \nA. Lysine, B. Arginine, C. Histidine, D. Methionine', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Arginine Arginine rich apo-E is isolated from VLDL.It contains arginine to the extent of 10 per cent of the total amino acids and accounts for 5 to 10 per cent of total VLDL apoproteins in normal subjects.", 'role': 'assistant'}]