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
The major lipid of the lipoproteins is: 
Select and explain. 
A. Oleic acid, B. Palmitic acid, C. Linoleic acid, D. Arachidonic acid
D: Arachidonic acid
Answer: D: Arachidonic acid 
Explanation: Arachidonic acid