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
Which of the following is not a constituent of Glycosphingolipid 
Select and explain. 
A. Sphingosine, B. Fatty acid, C. Glycerol, D. Carbohydrate
C: Glycerol
Answer: C: Glycerol 
Explanation: Glycosphingo lipid are made up of 
Sphingosine + Fatty acid + Carbohydrate group.
eg:- Cerebrosides, Gangliosides, Glubosides.