In this question, the sets of numbers given in the alternatives are represented. The columns and rows of Matrix I are numbered from 0 to 4 and that ofMatrix 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., D can be represented by 02, 10,etc., and 'R' can be represented by 55, 67, etc. Similarly you have to identify the set for the word 'BEAR'.
Improve the bracketed part of the sentence. The communities of ants are sometimes very large, (numbered) even upto 500 individuals: and it is a lesson to us that no one has ever yet seen quarrel between any two ants belonging to the same community.