This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of lipid, Subject name: Biochemistry
[{'content': 'The main apolipoprotein of LDL is \nSelect and explain. \nA. A-II, B. B-48, C. B-100, D. E', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The major apolipoproteins of HDL (a-lipoprotein) are apoAs. The main apolipoprotein of LDL (b-lipoprotein) is apo B (B-100), which is found also in VLDL. Chylomicrons contain a truncated form of apo B (B-48) that is synthesized in the intestine, while B-100 is synthesized in the liver. Apo E, found in VLDL, HDL, chylomicrons, and chylomicron remnants, is also freely transferable. Reference: Harper; 30th edition; Page no: 255', 'role': 'assistant'}]