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': 'Phospho-dephosphorylation of phosphofructokinase and fructose 1, 6, biphosphatase by fructose 2, 6,biphosphate regulation is seen in \nSelect and explain. \nA. Brain, B. Liver, C. Adrenal cortex, D. RBC', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Fructose 2, 6-biphosphate has unique role in regulation of glycolysis and gluconeogenesis in liver.', 'role': 'assistant'}]