Function Of The Tubules

The maximum amount of electrolytes and water (70-80%) from the glomerular filtrate is reabsorbed in which part of the nephron?
1. Ascending limb of the loop of Henle
2. Distal convoluted tubule
3. Proximal convoluted tubule
4. Descending limb of the loop of Henle

Which of the following diagrams is correct with regard to the proximal (P) and distal (D) tubule of the Nephron.

1.
2.
3.
4.