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': 'NADPH is produced by: \nSelect and explain. \nA. Glycolysis, B. Citric acid cycle, C. Hexose monophosphate shunt, D. Glycogenesis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Hexose monophosphate shunt', 'role': 'assistant'}]