This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lipids, Subject name: Biochemistry
[{'content': 'Bile acids are synthesized from - \nSelect and explain. \nA. Arachidonic acid, B. Acetyl CoA, C. Linolenic acid, D. Linoleic acid', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'None > b' i.e., Acetyl CoA o Bile acids are synthesized from cholesterol (which is not provided in options) o Cholesterol itself is synthesized from acetyl CoA. Thus we can consider acetyl - CoA as the answer.", 'role': 'assistant'}]