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
Ceramide is: 
Select and explain. 
A. Simple lipid, B. Compound lipid, C. Precursor lipid, D. Derived lipid
A: Simple lipid
Answer: A: Simple lipid 
Explanation: 1. Simple lipid:

TAG (glycerol + 3 FA)
Ceramide ( Sphingosine + FA) 

2. Compound lipid:

Phospholipids
Glycolipid / Sphingoglycolipid
Aminolipids
Sulfolipids
Lipoproteins

3. Miscellaneous:

Precursor lipid - Compounds that can give rise to another lipids. Eg: Fatty Acids
Derived lipid - Eg: Bile acids
Precursor derived lipid - Eg: Cholesterol