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: Physiology
[{'content': 'Which of the following product is primarily filtered with little secretion or re-absorption in renal tubules? \nSelect and explain. \nA. Sodium, B. Creatinine, C. Glucose, D. Amino acids', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Creatinine can also be used to measure GFR as it is minimally secreted or reabsorbed in the renal tubules.', 'role': 'assistant'}]