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
Cholesterol structurally belongs to molecule 
Select and explain. 
A. Steroid, B. Carbohydrate, C. Urea, D. Peptide
A: Steroid
Answer: A: Steroid 
Explanation: Steroid

Sterols are a class of steroids which contain one or more hydroxy (OH) groups.
Cholesterol is the most important sterol.