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: Unknown
[{'content': 'Which of the following is not a ketone body -(PGI 84) \nSelect and explain. \nA. Acetone, B. Acetic acid, C. Acetoacetate, D. Beta-hydroxybutyric acid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ketone bodies are three water - soluble molecules (acetoacetate, beta-hydroxybutyrate, and their spontaneous breakdown product, acetone) that are produced by the liver from fatty acids. Acetoacetic acid is a ketone body, but acetic acid is not. Note that acetic acid is hydrophobic while acetoacetate is water-soluble.', 'role': 'assistant'}]