All of the following are true about juxtamedullary nephrons except: (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
Answer is C. 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.