Which of the following is a correct statement about nephrons?

materials such as urea and water are filtered out of the blood in the glomerulus, but glucose is reabsorbed out of the blood by the renal tubules.
materials such as glucose and water are reabsorbed out of the blood in the glomerulus, but urea is filtered out of the blood by the renal tubules.
materials such as urea, water, and glucose are reabsorbed out of the blood in the glomerulus, and water and glucose are then filtered back into the blood by the renal tubules.
materials such as urea, water, and glucose are filtered out of the blood in the glomerulus, and water and glucose are then reabsorbed into the blood by the renal tubules.

Materials such as urea, water, and glucose are filtered out of the blood in the glomerulus, and water and glucose are then reabsorbed into the blood by the renal tubules.

Explanation:

A pair of Kidneys is the principal  excretory organ of the humans. Each kidney is composed of millions of its unit called nephrons. The nephron is the functional unit of the kidney as it filters out urea, water, and glucose from the bloodstream through the process of ultrafiltration. The filtered out material is called nephric filtrate. The filtrate then moves various tubules, called renal tubules where important molecules such as glucose, ions and water are reabsorbed into the blood.

the answer would be..

b. sucking