This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sources of blood glucose, Subject name: Biochemistry
[{'content': 'Major source of Acetyl CoA: \nSelect and explain. \nA. Triglycerides, B. Fatty acids, C. Pyruvate, D. Alanine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: As nothing is mentioned we have to assume question is asking about fed-state. In fed-state, major source of fuel is carbohydrates followed by fats and proteins. Acetyl CoA is derived from Carbohydrates, Fats & Proteins also. So in fed state major source will be Carbohydrates. Glucose forms pyruvate & then it forms Acetyl CoA. So best answer here is Pyruvate.', 'role': 'assistant'}]