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': 'All of the following are true about juxtamedullary nephrons except \nSelect and explain. \nA. It forms 15% of total nephrons, B. It ling loop of henle, C. It has slow rate of filtration, D. Major function is concentration of urine by counter current mechanism', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Features of Juxtamedullary nephrons :\n\nLocated near junction of cortex and medulla\nForms 15% of total nephrons\nLoop of henle is large extending deep into medulla\nit has high rate of filtration.', 'role': 'assistant'}]