This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
[{'content': 'Compound that joints glycolysis with glycogenesis and glycogenolysis is \nSelect and explain. \nA. Glucose 1, 6 biphosphate, B. Glucose 1 phosphate, C. Glucose 6 phosphate, D. Fructose 1, 6 biphosphate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Repeated question', 'role': 'assistant'}]