This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
[{'content': 'Glucose can be synthesised from all except: \nSelect and explain. \nA. Amino acids, B. Glycerol, C. Acetoacetate, D. Lactic acid', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. Acetoacetate(Ref: Harper 31/e page 172)Substrates for GluconeogenesisGlucogenic amino acidsLactateGlycerolAcetyl-CoA, Acetoacetate are not substrates for gluconeogenesis', 'role': 'assistant'}]