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 42, 31. etc. and 'P' can be represented by 95, 88 etc. Similarly, you have to identify the set for the word given 'ROST'.

From above given matrices I and II , we can see that
P ? 95, 88, 79, 66, 57
O ? 44, 33, 21, 12, 00
L ? 41, 30, 22, 14, 03
As shown in given figure , all the values for word POLO are matched in only option ( 2 ) for every letter . So , the set for the word POLO will be 95, 00, 22, 44 .From matrix , option ( 2 ) is correct .

From above given matrices I and II , we get different values for word CART -
C ? 59, 66, 77, 88, 95
A ? 01, 12, 20, 33, 44
R ? 02, 14, 23, 31, 40
T ? 58, 67, 75, 86, 99
From given matrix it is clear that all the values for word CART are matched in only option ( 2 ) for every letter . So , the set for the word CART will be 66, 12, 40, 58 .From matrix , option ( 2 ) is correct .

As per given above matrix I and II , we can see that
G ? 04, 10, 22, 30, 43
O ? 58, 65, 76, 86, 99
D ? 01, 11, 24, 33, 40
As shown in given figure , all the values for word GOD are matched in only option ( 3 ) for every letter . So , the set for the word GOD will be 30, 65, 40 .From matrix , option ( 3 ) is correct .

From above given matrices I and II , we get different values for word BEST -
B ? 00, 12, 24, 31, 43
E ? 03, 10, 22, 34, 41
S ? 58, 65, 77, 89, 96
T ? 59, 66, 78, 85, 97
From given matrix it is clear that all the values for word BEST are matched in only option ( 4 ) for every letter . So , the set for the word BEST will be 24, 22, 77, 97 .From matrix , option ( 4 ) is correct .

From above given matrices I and II , we get different values for word CALM -
C ? 44, 53
A ? 42, 46, 62
L ? 36, 65
M ? 51
As shown in given figure , all the values for word CALM are matched in only option ( 4 ) for every letter . So , the set for the word CALM will be 44, 62, 65, 51 .From matrix , option ( 4 ) is correct .

From above given matrices I and II , we can see that
N ? 55, 67, 79, 86, 98
G ? 04, 11, 23, 30, 42
A ? 58, 65, 77, 89, 96
T ? 01, 13, 20, 32, 44
As shown in given figure , all the values for word NGAT are matched in only option ( 3 ) for every letter . So , the set for the word NGAT will be 79, 30, 89, 44 .From matrix , option ( 3 ) is correct .

From above given matrices I and II , we can see that
M ? 55, 66, 77, 88, 99
U ? 03, 12, 21, 30, 44
T ? 02, 13, 20, 34, 41
E ? 58, 69, 76, 87, 95
As shown in given figure , all the values for word MUTE are matched in only option ( 3 ) for every letter . So , the set for the word MUTE will be 66, 03, 20, 95 .From matrix , option ( 3 ) is correct .

From above given matrices I and II , we get different values for word MILK -
M ? 610, 76, 810, 98, 107
I ? 66, 710, 86, 910, 108
L ? 69, 77, 88, 97, 109
K ? 68, 79, 87, 99, 106
From given matrix it is clear that all the values for word MILK are matched in only option ( 3 ) for every letter . So , the set for the word MILK will be 98, 86, 77, 99 .From matrix , option ( 3 ) is correct .

From above given matrices I and II , we get different values for word WARD -
W ? 58, 65, 77, 89, 96
A ? 03, 10, 22, 34, 41
R ? 55, 67, 79, 86, 98
D ? 56, 68, 75, 87, 99
From given matrix it is clear that all the values for word WARD are matched in only option ( 1 ) for every letter . So , the set for the word WARD will be 58, 10, 67, 75 .From matrix , option ( 1 ) is correct .

From above given matrices I and II , we get different values for word SLOW -
S ? 56, 58, 98
L ? 04, 34
O ? 66
W ? 75, 96
As shown in given figure , all the values for word SLOW are matched in only option ( 2 ) for every letter . So , the set for the word SLOW will be 98 ,04 , 66 , 96 .From matrix , option ( 2 ) is correct .