This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemistry of Lipids, Subject name: Biochemistry
[{'content': 'Which of the following is not a component of triglycerides? \nSelect and explain. \nA. Glycerol, B. Linoleic acid, C. Palmitic acid, D. Sphingosine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Triacylglycerols Neutral lipids Made up of glycerol and fatty acids. Linoleic acid and palmitic acid are fatty acids. Sphingosine Amino alcohol Component of sphingolipids.', 'role': 'assistant'}]