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
Bile acids are derived from : 
Select and explain. 
A. Fatty acids, B. Cholesterol, C. Bilirubin, D. Proteins
B: Cholesterol
Answer: B: Cholesterol 
Explanation: B i.e. Cholesterol