A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in two matrices given below. The columns and rows of Matrix?I are numbered from 0 to 4 and that of Matrix?II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column. e.g., 'M' can be represented by 01, 10 etc., and 'R' can be represented by 58, 85 etc. Similarly, you have to identify the set for the word 'NOW' .

From above given matrix , we get different values for word SNOW -
S ? 16, 21
N ? 23, 56
O ? 54, 66
W ? 52
From given matrix it is clear that all the values for word SNOW are matched in only option ( 4 ) for every letter . So , the set for the word SNOW will be 21, 23, 54, 52 .From matrix , option ( 4 ) is correct .

From above given matrices I and II , we get different values for word REST -
R ? 57, 69, 76, 88, 95
E ? 01, 13, 20, 32, 44
S ? 58, 65, 77, 89, 96
T ? 59, 66, 78, 85, 97
From given matrix it is clear that all the values for word REST are matched in only option ( 4 ) .So , the set for the word REST will be 76, 01, 65, 59 .Hence , option ( 4 ) is required answer .

From above given matrices I and II , we get different values for all given letters in matrices -
E ? 00, 13, 21, 34, 42
N ? 04, 11, 22, 33, 40
O ? 56, 67, 75, 88, 99
P ? 57, 69, 78, 86, 95
T ? 58, 65, 79, 87, 96
As shown in given figure , all the values for word NOTE are matched in only option ( 1 ) for every letter . So , the set for the word NOTE will be 40, 75, 96, 34 .From matrix , option ( 1 ) is correct .

The possible representations of each alphabet:
E ? 00, 13, 21, 34, 42
N ? 04, 11, 22, 33, 40
O ? 56, 67, 75, 88, 99
P ? 57, 69, 78, 86, 95
T ? 58, 65, 79, 87, 96
As shown in given figure , all the values for word PENT are matched in only option ( 4 ) for every letter . So , the set for the word PENT will be 78, 42, 11, 58 .From matrix , option ( 4 ) is correct .

From above given matrices I and II , we get different values for word DEAL -
F ? 02, 14, 21, 33, 40
I ? 67, 79, 86, 98
S ? 57, 69, 76, 88, 95
H ? 03, 10, 22, 34, 41
From given all the values for word FISH are matched in only option ( 2 ) for every letter . So , the set for the word FISH will be 33, 86, 88, 41 .From matrix , option ( 2 ) is correct .

From above given matrices I and II , we get different values for word DEBRIS -
D ? 04, 13, 22, 31, 40
E ? 59, 68, 77, 86, 95
B ? 00, 14, 23, 32, 41
R ? 58, 67, 76, 85, 99
I ? 02, 11, 20, 34, 43
S ? 55, 69, 78, 87, 96
From given matrix it is clear that all the values for word DEBRIS are matched in only option ( 3 ) for every letter . So , the set for the word DEBRIS will be 40, 95, 14, 58, 34, 69 .From matrix , option ( 3 ) is correct .

From above given matrices I and II , we can see that
L ? 03, 10, 22, 34, 41
E ? 00, 12, 24, 31, 43
N ? 58, 65, 77, 89, 96
D ? 56, 68, 75, 87, 99
From given matrix it is clear that all the values for word LEND are matched in only option ( 2 ) for every letter . So , the set for the word LEND will be 10, 31, 77, 99 .From matrix , option ( 2 ) is required answer .

From above given matrices I and II , we get different values for word PEST -
P ? 55, 69, 78, 87, 96
E ? 56, 65, 79, 88, 97
S ? 00, 14, 23, 32, 41
T ? 04, 13, 22, 31, 40
As shown in given figure , all the values for word PEST are matched in only option ( 2 ) for every letter . So , the set for the word PEST will be 55, 79, 23, 22 .From matrix , option ( 2 ) is correct .

From above given matrices I and II , we get different values for word SENT -
S ? 03, 10, 22, 34, 41
E ? 01, 13, 20, 32, 44
N ? 58, 65, 77, 89, 96
T ? 59, 66, 78, 85, 97
From given matrix it is clear that all the values for word SENT are matched in only option ( 2 ) for every letter . So , the set for the word SENT will be 22, 32, 65, 78 .From matrix , option ( 2 ) is required answer .

From above given matrices I and II , we get different values for word DOSSIER -
D ? 23, 32, 44
O ? 52, 54
S ? 35, 56, 78, 710, 87
I ? 25, 79
E ? 24, 43, 64, 108
R ? 26, 66, 1010
From given matrix it is clear that all the values for word DOSSIER are matched in only option ( 4 ) for every letter . So , the set for the word DOSSIER will be 32, 54, 710, 87, 25, 24, 66 .From matrix , option ( 4 ) is required answer.