Which of the following sequences of events occurs during the formation of urine in the human body?

Correct option is B

The correct answer is (B) Filtration → Reabsorption → Secretion.

The sequence of events during the formation of urine is:

1. Filtration at the glomerulus.
2. Reabsorption of useful substances back into the blood.
3. Secretion of additional waste products into the filtrate.
4. Excretion of urine from the kidneys to the external environment.