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': 'Enzyme transketolase is dependent on which of the following co-enzymes? \nSelect and explain. \nA. NAD, B. FAD, C. CoA, D. TPP', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (Thiamine pyrophosphate) Therefore, measurement of erythrocyte transketolase activity gives idea regarding thiamine status of the body.', 'role': 'assistant'}]