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
Fatty acid in cholesterol is mainly: 
Select and explain. 
A. Linoleic, B. Oleic, C. None, D. Arachidonic
C: None
Answer: C: None 
Explanation: Fatty acid is not present in cholesterol Cholesterol structure It has 27 Carbons and an -OH group at C3. There are 4 fused hydrocarbon rings (A to D), which is known as Steroid nucleus. A branched hydrocarbon chain is attached at C-17. Structure of Cholesterol