DIRT

The possible representations of each alphabet:
D = 57, 69, 76, 88, 95
I = 58, 65, 77, 89, 96
R = 04, 11, 23, 30, 42
T = 56, 68, 75, 87, 99
M = 02, 14, 21, 33, 40
S = 03, 10, 22, 34, 41
As shown in given figure , all the values for word DIRT are matched in only option ( 3 ) for every letter . So , the set for the word DIRT will be 57, 58, 23, 99 .From matrix , option ( 3 ) is correct .