The correct option is A 5 1 2 5 9
In this example the position number of each letter is found out first The digit of position number are added together to get a single digit number This number replaces the letter in the code
V→22→4,E→5,G→7,E→5,T→20,A→1,B→2,L→12→3,E→5V→22→4,E→5,G→7,E→5,T→20,A→1,B→2,L→12→3,E→5
Apply the same technique the word W A T E R
W→23→5,A→1,T→20→2,E→5,R→18→9W→23→5,A→1,T→20→2,E→5,R→18→9