A ,B ,C, D are given below .Arrange the mechanism of urine formation in the correct order .
1) Glomerular filtration
2) Tubular reabsorption
3) Tubular secretion
4) Concentration of urine
A) A →B → C → D
B) B → A → C → D
C) A → C → B → D
D) A → B → D → C