This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of lipid, Subject name: Biochemistry
Cholesterol is a(an) 
Select and explain. 
A. Ester, B. Phospholipid, C. Sterol, D. Lipoprotein
C: Sterol
Answer: C: Sterol 
Explanation: Ref: DM Vasudevan - Textbook of Biochemistry, 6th edition, page no: 146