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': 'Key enzyme of gluconeogenesis are all except? \nSelect and explain. \nA. Pyruvate carboxylase, B. PEP carboxykinase, C. Pyruvate kinase, D. Glucose-6-phosphatase', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Pyruvate kinase", 'role': 'assistant'}]