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': 'Alcohol is found in all except : \nSelect and explain. \nA. Glucocerebroside, B. DHA (Docosa Hexaenoic Acid), C. Lecithin, D. Sphingomyelin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Alcoholic group is found in Glucocerebrosides, Sphingomyelin, Lecithin except for DHA. DHA (Docosa Hexaenoic Acid) 22C fatty acid with 6 double bonds. No alcohol is present Glucocerebrosides & Sphingomyelin contains Sphingosine alcohol. Lecithin contains Glycerol alcohol.', 'role': 'assistant'}]