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': 'Transpo maximm (Tm) means - \nSelect and explain. \nA. Maximum reabsorption & secretion, B. Maximum amount of glomerular filtration /min, C. Substance cleared from plasma/min, D. Amount of toxic substances excreted /min', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Maximum reabsorption & secretion', 'role': 'assistant'}]