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
All of the following are true about juxtamedullary nephrons except 
Select and explain. 
A. 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
C: It has slow rate of filtration
Answer: C: It has slow rate of filtration 
Explanation: Features of Juxtamedullary nephrons :

Located near junction of cortex and medulla
Forms 15% of total nephrons
Loop of henle is large extending deep into medulla
it has high rate of filtration.