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': 'One of the following is having least density: \nSelect and explain. \nA. Chylomicron, B. HDL, C. LDL, D. VLDL', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Chylomicron', 'role': 'assistant'}]