What Are the Two Main Functions of the Nephron Loop

What are the two main functions of the nephron loop?

A) Creates a high salt concentration in the renal cortex and reabsorbs some salt and water
B) Creates a high salt concentration in the renal medulla and reabsorbs salt and water
C) Creates a high glucose concentration in the renal cortex and releases extra salt into the filtrate
D) Filters cellular wastes from blood in the capillaries and reabsorbs some salt and water
E) Creates a low salt concentration in the renal medulla and reabsorbs salt and water