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
[{'content': 'Gluconeogenesis in fasting state is stimulated by \nSelect and explain. \nA. Pyruvate kinase stimulated by citrate, B. Activation of pyruvate carboxylase by acetyl Co-A, C. Activation of pyruvate kinase by fructose 1, 6-bisphosphate, D. Stimulation of phosphofructokinase-1 by fructose 2, 6-bisphosphate', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b. Activation of pyruvate carboxylase by acetyl Co-A', 'role': 'assistant'}]