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': 'A membrane phospholipid that does not contain glycerol is: \nSelect and explain. \nA. Lecithine, B. Cardiolipin, C. Sphingomyelin, D. Cellulose', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Sphingomyelin has got sphingosine alcohol, not the glycerol. Lecithin & cardiolipin has got glycerol in it and they are membrane phospholipid.', 'role': 'assistant'}]