To solve this problem, we need to match the processes in Column I with their corresponding locations or functions in Column II. Let's analyze each process:$\newline \bullet$a. Ultrafiltration:$\newline$ - Ultrafiltration is the process of filtering blood to form urine, which occurs in the Malpighian corpuscle.$\newline$ - This matches with iv.$\newline \bullet$b. Concentration of urine:$\newline$ - The concentration of urine primarily occurs in the Henle’s loop, where water and salts are reabsorbed.$\newline$ - This matches with i.$\newline \bullet$c. Transport of urine:$\newline$ - The transport of urine from the kidneys to the bladder is carried out by the ureter.$\newline$ - This matches with ii.$\newline \bullet$d. Storage of urine:$\newline$ - The urinary bladder is responsible for the storage of urine until it is excreted.$\newline$ - This matches with iii.$\newline$Now, let's match the items from Column I with Column II:$\newline a \rightarrow iv, b \rightarrow i, c \rightarrow ii, d \rightarrow iii \newline$This corresponds to Option 2.