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': 'The main function of HDL is \nSelect and explain. \nA. Transport cholesterol from liver to peripheral tissues, B. Esterification with PUFA, C. Both of the above, D. None of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]